1. Update 1: tweaks made to insane diff hitsounding, replaced SUPER LONG rebounding slider with spinner. complete overhaul on easy diff, much easier.
2. update 2: hard difficulty added!
3. update 3: inasane mode redone to "flow" better (hopefully)
4. update 4: hard difficulty reworked.
5. update 5: normal difficulty reworked, add wip difficulty "heart of the crypt"
6. update 6: Heart of the Crypt difficulty finished, remade easy difficulty
7. update 6.5: GOD DAMMIT I DIDN'T CHECK EASY DIFF - nerfed easy diff.
8. update 7: fixes and tweaks to all diffs! - now in what I think is a rankable state woop woop~ *edit* IT IS N A U G H T
9. update 7.5: minor timing tweaks in HotC diff
10. Update 8: de-cluttered forum post, reworked easy diff AGAIN, fixed wonky new combos at the start of normal.

General

1. Disable countdown.
2. Disable widescreen support (because there is no storyboard.) It's used when there is storyboard.
3. Add tags: FamilyJules7x Danny Baranowsky dB soundworks A Shadow to Prevail Crypt of the Necrodancer
4. Decrease the hitsound volume (F6->Audio) to 90% and/or below (because 100% volume is too noisy).

1. 01:11:905 - It fits better if the kiai starts from 01:11:999 until 01:23:999
2. 02:13:312 - Also fits better if starts from 02:13:499 until 02:34:499

1. Decrease Normal diff's SV to 1,2 (because 1,5 is too much).
2. Decrease Hard diff's SV to 1,4 (for an appropriate SV spread).
3. Decrease Insane diff's SV to 1,6.
4. After doing this, recalculate all slider lengths (from Timing tab) while having your Beat Snap Divisor set at 1/2 first.

Easy

1. Distance Snap every note with 1.0x Distance Spacing (because 0.5x is too close).
2. You might want to use 1/2 Beat Snap Divisor (because it's easy diff)
3. And make more curve on sliders.
4. And make sure to not stack or overlap the note (because it will make it visually hard for easy diff).
5. You might want to read this (and the rest if you feel like it).
6. 00:23:999 - New Combo.
7. 00:26:999 - New Combo.
8. 00:27:749 - New Combo.
9. 00:29:999 - New Combo.
10. 00:32:249 - New Combo.
11. 00:32:999 - New Combo.
12. 00:35:999 - New Combo.
13. 00:36:374 (2) - Change to circle.
14. 00:37:874 - New Combo.
15. 00:41:999 - New Combo.
16. 00:44:062 - New Combo.
17. 00:44:624 (4) - Change to circle.
18. 00:53:999 - New Combo.
19. 00:53:999 (1,2) - Delete circle 2, then extend slider 1 until 00:54:749
20. 00:55:124 - New Combo.
21. 00:56:249 (4) - Shorten it to 00:56:624
22. 00:56:999 - New Combo.
23. 01:02:999 - New Combo.
24. 01:05:249 - New Combo.
25. 01:05:999 - New Combo.
26. 01:08:999 - New Combo.
27. 01:14:999 - New Combo.
28. 01:15:749 - New Combo.
29. 01:17:999 - New Combo.
30. 01:19:312 - New Combo.
31. 01:19:687 (4,5,6,7) - Delete slider 4 and 6. Then move slider 5 to 01:19:874 and slider 7 to 01:20:437
32. 01:23:624 - Add a slider until 01:23:999
33. 01:32:999 - New Combo.
34. 01:38:999 - New Combo.
35. 01:44:999 - New Combo.
36. 01:45:374 (2,3,4,5) - Delete slider 2 and 4, then move slider 3 to 01:45:562 and slider 5 to 01:46:124
37. 01:48:562 (1) - Move it to 01:48:749
38. 01:50:062 (2) - Move it to 01:50:249
39. 01:51:562 - New Combo.
40. 01:51:562 (1) - Move to 01:51:749
41. 01:53:999 - New Combo.
42. 01:54:749 (3,4) - Delete circle 4, then change circle 3 to slider until 01:55:124
43. 01:55:687 (4,5) - Backward circle 4 to 01:55:499 and circle 5 to 01:55:874
44. 01:56:249 (6,7) - Delete circle 7, then change circle 6 to slider until 01:56:624
45. 01:56:999 (7) - Change it to spinner until 01:59:624
46. 02:02:999 - New Combo.
47. 02:05:999 - New Combo.
48. 02:06:749 - New Combo.
49. 02:08:999 - New Combo.
50. 02:11:624 (7,8) - Delete circle 8, then change circle 7 to slider until 02:11:999
51. 02:16:499 - New Combo.
52. 02:19:499 - New Combo.
53. 02:24:374 (4,5) - Delete circle 5, then forward slider 4 to 02:24:562
54. 02:28:874 - New Combo.
55. 02:31:124 - New Combo.
56. 02:31:874 - New Combo.
57. 02:34:874 - New Combo.
58. 02:35:812 (2) - Backward it to 02:35:624
59. 02:37:499 - Add a circle.

Normal

1. Approach rate 6 is too high for normal diff. AR 4 or 3 should be enough.
2. Distance Snap most of note with 1.0x Distance Spacing (because most of them aren't spaced well for normal diff).
3. You might want 1/2 Beat Snap Divisor for normal diff, too.
4. 00:01:874 (1) - Rebound slider (a repeat slider which repeat more than once) is considered visually confusing for normal diff and below. For this one, my suggestion is two 1/2 sliders and a circle.
   Do this too on 00:04:874 (2) - 00:07:874 (5) - 00:10:874 (2) - 00:13:874 (5) - 00:16:874 (2) - and 00:19:874 (5)
5. 00:01:874 - NC.
6. 00:04:499 - NC.
7. 00:10:499 - NC.
8. 00:16:499 - NC.
9. 00:21:562 - NC.
10. 00:22:499 - NC.
11. From 00:23:999 onward, just follow Easy diff which note that should be NC'ed .
12. 00:26:249 (4) - Make it a beat long (from 00:26:249 to 00:26:624).
13. 00:56:062 (2) - Move it to 00:56:249 then end it at 00:56:624
14. 00:59:249 (7) - Change it with two 1/2 sliders.
15. 00:36:749 (9) - Shorten it 1/2 a beat (to 00:37:499)
16. 00:37:874 (1) - Move it to 00:38:062
17. 00:39:374 (3) - Shorten it 1/2 a beat (to 00:39:749)
18. 00:42:749 (8) - Shorten it 1/2 a beat (to 00:43:499)
19. 00:52:312 (4) - Shorten it 1/2 a beat (to 00:52:687)
20. 00:55:124 (1) - Shorten it 1/2 a beat (to 00:55:874)
21. 01:17:249 (3) - Shorten it 1/2 a beat
22. 01:23:249 (4) - Make the slider repeat once. Then add a 1/2 beat slider at 01:23:812
23. Make slider at 01:29:999 not repeat, then add a 1/2 beat slider at 01:30:374
24. 01:31:499 - Same as above.
25. 01:32:999 - ^
26. 01:34:499 - Change it with two 1/2 beat sliders and a 1/1 beat slider.
27. 01:41:249 (8,9,10) - Unstack them.
28. 01:50:624 (2) - Forward it 1/2 a beat.
29. 01:54:562 (9) - Forward it 1/2 a beat.
30. 01:55:687 (11) - Backward it 1/2 a beat.
31. 01:56:249 (13) - Forward it 1/2 a beat.
32. 01:56:999 (15) - Change it with spinner until 01:59:624
33. 02:09:749 (5,6,7) - Unstack them.
34. 02:10:499 - Add circle.
35. 02:11:812 (12) - Forward it 1/2 a beat.
36. 02:18:749 (8) - Make the slider not repeat. Then add a circle at 02:19:124
37. 02:21:749 - Add a 1/2 one-repeat slider.
38. 02:24:749 - Make the slider repeat once. Then add a circle at 02:25:312
39. 02:35:812 (7) - Backward it 1/2 a beat.
40. 02:37:499 - Add a circle.

Hard

1. AR 7,5 seems a bit too high. How about 7 or 6?
2. HP Drain 4 is too low for hard diff. How about 6?
3. 01:23:999 - Add a circle.
4. 01:47:999 - Add a circle.
5. 01:57:374 (1) - Prolong it 1/2 a beat.
6. 02:01:312 - Add a circle.
7. 02:02:062 - ^
8. 02:02:249 (6) - Make this slider repeat once.
9. 02:04:312 - Add a circle.
10. 02:07:312 - Add a circle.
11. 02:08:624 - ^
12. 02:11:999 - ^
13. 02:37:499 - ^

Insane

1. HP Drain 5 is a bit too low. 7 should be enough.
2. AR 8 or 7 fit better in my opinion.
3. Most of the jump pattern is uneven. You might want to rearrange them.
4. 01:23:999 - Add a circle.
5. 02:37:499 - Add a circle.

Overall

1. First is how most of the note is placed unevenly in every diff. So, you might want to rearrange every diff's note and make a better flow.
2. Second is the New Combo usage. I can't teach how to use them properly, but there are 2 thing that I remember when using NC:
   1) Don't spam too much combo (unless if it's reasonable);
   2) Don't make too long combo (unless if it's match with the other note's combo).

Cthulhu the Dog wrote:

This is my first time modding so please be gentle
As I dug into the beatmap you seemed to have a lot of polarity issues so you may want to look into polarity. Charles445 has an excellent video on polarity here: https://www.youtube.com/watch?v=53PkFLrK8Ws
You may ask, "How is polarity bad in certain areas on x and y beatmaps? It's fine, its all on red and white ticks." Depending on the audience the beatmap is aimed towards (such as easy and normal being novice players) you may have to baby it for those players. With all of this said, you do have good examples of polarity being executed correctly such as the intro to the easy diff where you have a slider that starts on white and ends on red with the next slider starting on red and ending on white.
Any example given is not necessarily what should be done, it is just a possibility. It's just an idea to assist if you don't know what to do.

[Easy]
Overall the easy diff was immensely technical in a way and was overly babied in another. The cursor movement is very simplistic yet the clicking is advanced for a novice. I will try to help mod the easy diff but it may be a good idea to rework the easy diff so that there are less notes but more space between them.
00:00:000 (1,2,3,4) - This in general is fine however the same rhythm of slider slider note note repeats for 16 measures and 24 seconds of the same clicking pattern just isn't that fun. Maybe spice it up by changing the pattern halfway through at 00:11:999 (1,2,3,4)
00:40:124 (7) - This finish slider isn't out of place, it is just a little excessive. Try messing with it. I think only making the start (00:40:124) and end (00:40:499) have the finish hitsound is good but it's up to you.
00:44:062 (3) - Polarity is difficult for novice, consider revising. Example: Remove 00:44:062 (3) and add slider repeat on 00:42:749 (2). Revise
subsequent note positioning as needed.
00:56:062 (3) - This slider has polarity issues with the previous sliders having 2 1/2 ticks between hits instead of 1 1/2 and is very difficult to acknowledge, strongly consider revision. Example: Remove 00:56:062 (3) and add hitcircles at 00:56:249 and 00:56:624. (Mostly what is needed to be done is the note after 00:55:124 (2) should be on 00:56:249).

[Normal]
00:26:999 (1) - Another polarity issue. An idea for a fix is add a repeat on the previous slider (00:26:249 (5) so the polarity ends on a white tick rather than a red tick.
00:40:124 (4) - Same as easy difficulty at 00:40:124 (7).
00:56:249 (9) - Players will not be prepared for this polarity but it is different to the similar situation in the easy difficulty. 00:53:999 (6,7,8) make it sound as if the next note (00:56:249 (9) will be on a red tick. This can be fixed by extending slider 00:53:999 (6) to the next red tick.
01:17:249 (4) - Consider adding a repeat on this slider.
01:50:062 (1,2,3) - This phrase should probably be revised as 01:50:812 (2) is not where it should be. i.e. Circle here: 01:50:062, slider here: 01:50:249 slider repeat here: 01:50:530, slider end here: 01:50:812.

[Hard]
00:04:499 (1,1,1) - I do not believe any of these should be new combos.
00:10:499 (1,1,1) - Same here.
00:16:499 (1,1,1) - Same here.
00:21:562 (1) - Same here. (If you're going for like an epic end, 00:21:937 (2) could make sense to have a new combo if you take the new combo off of 00:22:499 (1).
00:41:999 (9) - Slider repeat placement is bad. If you want the slider to follow the guitar it should be on the white tick, and if following the drum on the blue tick, it should probably be followed up immediately on the white tick with another note.
00:42:749 (10) - Light suggestion, long slider rather than short slider repeat many times. It does follow a rhythm but it's more a background part and may want to consider nailing that long guitar note.
00:53:999 (8) - Add new combo here (If added remove new combo here: 00:55:124 (1) and add another new combo here: 00:56:999 (5) and potentially here: 00:58:499 (13).
01:06:562 (1) - Move this new combo to 01:05:999 (9).
01:08:999 (7) - New combo.
01:15:562 (1) - Move this new combo to 01:15:187 (10).
01:17:999 (11) - New combo.
01:21:187 (1) - Move this new combo to 01:20:999 (10).
01:40:124 (1) - Move this new combo to 01:39:187 (10).
01:41:999 (9) - New combo.
01:43:499 (12) - Consider new combo here because of build up in song.
01:45:749 (5) - Same here.
01:46:499 (9) - Same here.
01:50:062 (1) - Move this new combo to 01:50:249 (2).
01:50:437 (1) - Move note here 01:50:530. Also no need for new combo.
01:50:718 (2) - Move note here 01:50:812.
01:50:062 (1,2,1,2,3) - The note's positioning in the phrase is a mess and will throw players off. With all the revisions just mentioned you probably should revise their positions.
01:53:249 - It seems like the most significant note would be here but there is no note. Consider adding a circle or moving back 01:53:437 (4) to that time and give it a repeat.
01:53:999 (5) - New combo.
01:54:187 (6) - Move this note to 01:54:280.
01:54:468 (7) - Move this note to 01:54:562.
01:55:312 (10) - Move this note to 01:55:405.
01:56:155 (13) - Move this note to 01:56:249.
02:03:187 (9) - New combo.
02:06:937 (1) - Move this new combo to 02:06:374 (18).
02:10:499 (14) - Suggested new combo.
02:13:312 (1,2) - You could put another note between these two. It's a very significant sound and it's not surpassing the boundaries of hard difficulty as long as it's not used often.
02:13:312 (1) - Consider changing from drum_hitnormal to normal_hitnormal.
02:16:687 (10) - New combo.
02:28:499 (10) - New combo.
02:30:937 (1) - Move this new combo to 02:31:499 (3).
02:34:312 (11) - Consider new combo here and/or here: 02:35:999 (15).

[Insane]
00:01:499 (1) - Inconsistent with future sections' new combos (00:07:499 (5), 00:13:499 (5), and 00:19:499 (5), consider revising.
00:01:874 (2,3,4,5,6,7,8,9,10) - Finish hitsound extremely excessive. Consider only having it on 2, 6, and 10.
00:04:874 (1,1,1) - Claps excessive here as well. Consider only having it on 1, 1, and 1. Also, consider revising new combo but not necessary.
00:07:874 (6,7,8,9,10,11,12,13,14,15,16,17) - Consider revising hitfinish as mentioned before (00:01:874 (2,3,4,5,6,7,8,9,10).
00:10:874 (1,1,1) - "Claps excessive here as well. Consider only having it on 1, 1, and 1. Also, consider revising new combo but not necessary."
00:13:874 (6,7,8,9,10,11,12,13,14,15,16,17) - hitfinish as mentioned before.
00:16:874 (1,1,1) - "Claps excessive here as well. Consider only having it on 1, 1, and 1. Also, consider revising new combo but not necessary."
00:19:874 (6,7,8,9,10,11,12,13,14,15,16,17) - hitfinish as mentioned before.
00:21:562 (1) - New combo is unnecessary but is ok.
00:32:812 (9) - New combo.
00:36:749 (4,5,6,7,8,9,10,11,12,13,14,15,16) - hitfinish as mentioned before, maybe 4, 8, 12, and 16 could still have hitfinishes if you want.
00:42:749 (4,5,6,7,8,9,10,11,12,13,14,15,16) - With however you may revise the previous stream mentioned, you should probably keep the hitsounds of this stream consistent with those streams.
00:45:280 (5,8) - Consider hitfinish on just parts of the sliders and not the whole sliders.
00:46:687 (11,12) - Hitsounds of these sliders build up to no finish (because the finish is a silent spinner) and is very anticlimactic. Consider removing hitclap and finish.
00:56:999 (6,7,8,9,10,11,12,13,14) - Consider changing to drum hitsounds.
00:59:249 (15,16,17,18,19,20,21,22) - Excessive hitfinishes. Also consider new combo on 15.
01:03:374 (1) - Move this new combo to 01:02:812 (9).
01:06:562 (1) - Move this new combo to 01:05:999 (9).
01:08:999 (8) - New combo.
01:15:562 (1) - Move this new combo to 01:14:812 (14).
01:17:999 (13) - New combo.
01:21:187 (1) - Move this combo to 01:20:999 (10).
01:22:499 (4,5,6,7,8,9,10,11) - Change hitsounds to drum hitsounds probably.
01:23:249 (6,7,8,9,10) - Maybe only 6, 8, and 10 have hitfinish.
01:29:999 (1) - Consider adding 1 more repeat on slider. Consider changing hitfinish to just one part of the slider.
01:31:499 (1) - Same here. Also, consider removing new combo.
01:32:999 (1) - "Consider adding 1 more repeat on slider. Consider changing hitfinish to just one part of the slider."
01:34:499 (1) - Consider adding 1 more repeat on slider, also consider removing new combo. Consider making hitsounds consistent with the previous 3 sliders mentioned depending on if and how you revise them.
01:35:249 (3,4,5,6,7,8) - Consider revising hitsounds. Maybe finish on only 5 and whistle on only 8.
01:50:437 (1) - Move note to 01:50:530.
01:50:718 (2) - Move note to 01:50:812.
01:53:249 - Feels like a note should be here.
01:54:187 (2) - Move note to 01:54:280.
01:54:468 (3) - Consider removing this note.
01:55:218 (6,7) - Consider removing these notes.
01:55:405 - Consider adding a note here.
01:56:155 (11) - Move note to 01:56:249.
01:50:437 (1) - Consider moving or removing this new combo.
02:02:624 (8) - New combo.
02:06:937 (1) - Move this new combo to 02:05:812 (18).
02:08:624 (5) - Potential new combo.
02:11:999 - Should probably have a note here and potentially remove 02:11:812 (18).
02:13:312 (1,2) - Probably should change this to normal_hitnormal instead of drum_hitnormal.
02:34:312 (11) - Consider new combo.

[Heart of the crypt]
Consider proper capitalization for a title on the difficulty name (Heart of the Crypt).
Approach rate seems a bit high for a map of this difficulty and bpm, I would recommend 9-9.2 or so but this type of thing is entirely up to the mapper so feel free to leave it as is.
00:06:749 (1) - Move this new combo to 00:05:812 (10).
00:07:874 (7) - New combo to maintain consistency of new combo pattern.
00:10:874 (11) - New combo.
00:13:687 (13) - New combo.
00:17:999 (7) - New combo.
00:20:999 (13) - New combo.
00:35:624 (19) - It's your choice but the stream probably shouldn't be cut off by this slider and you may want to make the rest of the area the slider takes up a continuation of the stream.
00:50:249 (1) - Move this new combo to 00:50:999 (7).
00:54:187 (2) - Unrankable error. Do not stack notes on top of other notes. Just move 2, and 3 1 1/4 tick forward.
00:56:999 (14) - New combo.
01:02:624 (12) - New combo.
01:08:812 (13) - New combo.
01:10:124 (1) - Move this new combo to 01:10:499 (4).
01:13:874 (12,13,14,15,16,17) - These notes are the hardest notes in the entire song. Consider revising, it could frustrate people to play your map and fc everything but this many times in a row. The reason this is harder than the subsequent spaced streams of the map is those spaced streams have flow but you have to snap to every one of these notes.
01:21:187 (1) - Move this new combo to 01:20:812 (18).
01:53:437 (1) - New combo unnecessary.
02:13:312 (1) - Consider changing drum_hitnormal to normal_hitnormal hitsounds.
02:13:499 (1) - Unnecessary new combo.
I honestly thought your maps were amazing for it being your second mapset. This is on par with my 5th or so. Nice work and good luck ranking ^_^
Hope I helped!