Hi there ~ Sorry for delay
Modding as request, keep in mind that i started modding this a few days ago, so maybe some issues were doubled

Overall, i think the Insane and Normal is quite enough for rankable state, but i think some flow on Hard can be improved. Also give a look again on your Easy, the diff really needs much more work compared to others, well sorry for my bad mod. I just can't having a proper way to explain you on how to make a good Easy diff, take a look on some easy at recent ranked maps and you'll know how to make good flow and good rhytm.
Anyways sorry i can't mod alternative since it feels really overmapped for my taste, but meh it's your choice
Good Luck on the way ~

Modding as request, keep in mind that i started modding this a few days ago, so maybe some issues were doubled

[General]
- Inconsistency in Audio Lead-in, only Alternative's and Tz8s which have 2000 ms lead. I'd advise you to make them consistent instead. Either add audio lead-in on all diffs, or disable it on all diffs.
- It would be nice if you can make all diffs end on the same time.
[Tz8s Insane]
- 00:00:820 - Hm.. it would be better if you change this to other S : C that have original whistle so you can give some emphasize to the piano on these slider 00:00:820 (1,2,1,2,1,2) - to make it more smooth ? Current seems boring to follow during gameplay imo.
- 00:18:172 (3,4) - This rhytm can be more improved imo, you can add a note at 00:18:172 - then use a 1/2 slider at 00:18:320 - to empahsize the vocal hold yet the instrument sound on the downbeat, then you can add another note at 00:18:761 - to keep your pattern
- 00:19:790 (2,3) - This spacing would be too much since there's nothing that sticked out from the music. It would give more sense for players if you can reduce this jump a bit.
- 00:30:231 (1) - I guess you missed a finish here ? the music were changed phase after that instrument sound on the BGM, also the vocal was showing high beat and the music were provide such a huge splashy sound. finish can fit really nice here
- 00:34:937 (1) - Finish for same reason ^, and i can hear slightly a cymbal sound here on the BGM, you can add new green line with lowered volume to emphasize it more better.
- 00:49:055 (1) - This NC is fake, if you click this note you can see that the New combo option on the right corner of the screen isn't clicked, Be sure to fix this
- 00:54:202 (2,3) - This rhytm would be awkward since you used double 1/2 slider rhytm which different with 00:54:790 (4,5) - that has been emphasized by the 1/2 violin instrument on the BGM. this rhytm would make more sense if you extend (2) into a 1/1 slider to follow the vocal nicely, then add a circle at 00:54:643 -
00:11:114 (2,1,2) - This pattern didn't flow nicely as they're aligned in bad way, which the angle of 2nd (2) was against your previous flow. How about moving (1) a bit upwards to create jump instead of stack to fix this ?
00:34:937 (1) - I feel that they're really should be a finish here because of that slightly cymbal crash on the BGM and the changing phase of the song. If you found that it's too loud, try reducing the volume a bit.
00:43:025 (6) - Plays a bit awkwardly for me, the end slider for downbeat seems clashing with (7) that didn't really comfortable to play, how about moving this 1/2 earlier and adding note at the downbeat instead ?
00:55:525 (1) - I didn't really agree with the slowdown here, differ from before. They're no such thing that changed on the music instead of vocal that didn't strong enough to pointing this one. Beside that, the bear anti-jump that you use next just making it's even more weird. - 00:57:731 (5,1) - Is this partial overlapping was potential ? it's a bit ugly for my taste. How about moving (1) a bit up leftwards to avoid this ?
- 01:01:849 (6) - This flows didn't too smoth to play imo, how about making this slider straight to create symmetrical pattern with (4) also making natural transition to (7) ? like this
- 01:04:937 (1) - Same as 00:55:525 (1) -
[Kinomi Hard]
- The setting was quite unbalance here because you use quite high SV for 200 BPM song, how about AR + 1 ? if you look it this would be more fit with your pattern. since current Ar was quite low to follow during gameplay compared to the SV and rhytm
- Yet i don't really like the way you skipping 2 - 4 clap rhytm in the music and mapping only the instrument which a "note" and the clap can be really easy to be emphasized by adding a circle, I mean why you didn't add "clapped" circle there 00:10:820 - 00:16:408 - 00:19:937 - 00:57:584 -
- 00:05:967 (2,2,2,8) - Some hitsounding suggest here, you can try adding whistles to these slider's head for another emphasize of violin instrument on the music, whistles on downbeat seems not enough to give smooth play at this part imo if you agree pls added so one similiar part at the ending of the song o.<
- 00:21:114 (3) - Consider again why you want to stack this on the end, seems weird for a fast rhytm. Stack it with the next 1/2 slider instead would be better pattern to follow imo
- 00:30:231 (1) - Ctrl H this ? flow can be more improved imo, since the current slider's end was pointing the opposite side on which the (2)'s place.
- 00:21:996 (2,3) - Try delete the reverse point then adding note with 1/1 slider instead to keep following the vocal smoothly as you did on entire diff
- 00:26:408 (3,4) - Seems you're using wrong way to stops here, if you want to make a 1/1 blank space, then why didn't you make stop at 00:26:481 - to 00:26:628 - which didn't have any music or vocal on BGm instead of skipping the vocal at 00:26:849 - ? Try this rhytm instead to keep the steady transition and smoother gameplay
- 00:34:643 (4) - This slider plays a bit odd without finish hitsound.. Add it on slider's end due to downbeat and to emphasizing that splashing instrument on the music.
- 00:35:525 (2,3,4,5) - The placemenf of (3) and (4) was also ruin the flow here because it didn't make any path that give sense against your previous flow, how about arrange them like this for nicer pattern to play ? the small jump for complex vocal and 1/1 stop would really interesting to play imo
- 00:52:290 (4) - The rhytm plays a bit awkward here due to the 1/1 stop by a end of 1/2 slider, try change this into a note then 1/1 slider start from 00:52:437 - to keep following the vocals smoothly instead, the transition would be more steady imo
- 00:56:114 (4) - Try curved this slider downwards so the transition before and after this slider would be more natural. Like this
- 01:01:555 - Add circle here to following the vocal and keep the flow smoothly during gameplay
- 01:14:864 - The stream were still go on here, so how about add 1 more reverse to 01:14:643 (6) - so it will keep following the drum ?
[Normal]
- 00:01:702 - 00:02:878 - 00:04:055 - I would recommend adding note here since the part feels a bit empy with the important piano being skipped, even it's normal diff that's feels a bit odd for me.. but whatever x_x
- 00:09:496 (4) - I think the flow can be more improved here, try flip this slider so the transition would be more natural ? It'll make the pattern neater
- 00:10:231 (1) - You should change it to 1/1 slider instead because it break consistency with 00:07:878 (1) - that have 1/2 gap and spacing when the music clearly playing the same instrument, also you can keep emphasizing the drum if you did this
- 00:14:937 (1,2,3) - Triple 1/1 stack for normal sounds a bit mean and sometimes hard to read especially for normal diff on high bpm, you can move (2) into a normal DS to create back-forth flow pattern that more fun here.
- 00:15:967 (4) - Ditch this 2/1 slider into 00:16:261 - then add note at 00:16:408 - instead ? This part were different with 00:18:320 (3) - which don't have any vocal on the slidertrack, so i think variety the rhytm a bit would be more nice
- 00:17:290 (1) - The slider shape seems a bit messy for the next transition imo. The flow would be a lot smoother if you change this into a simple straight slider that pointing into (2) here.
- 00:19:643 (1,2) - Another pattern suggestion for flow improving here, Try arrange them like this so the transition from (4) would be more natural ? the current slider's shape of (1) seems doing the opposite way of which it should be.
- 00:25:231 (2,1) - How about making them consistent instead with 00:29:937 (4,1) - since it's same music and vocal ? either of unstacking one of them.. or making them have normal DS for neater pattern to follow during gameplay
- 00:45:525 (2) - Lol is this clap on slider's head intentional ? as far i can hear the drum on the music were hitting here 00:45:672 - which 1/2 apart.. Seems unnecessary to add it imo
- 00:59:643 (3,1) - This pattern looks a bit messy on gameplay because (3) still slightly visible when (1) has appeared, How about moving them like this for cleaner pattern to follow during gameplay ?
- 01:27:878 (5,6) - Missing clap on these slider's end ? the 1/1 drum rhytm were still continued here, so i see no reason to skip it o3o
[Easy]
- LMAO what's wrong with that BG xDDD . Go open this diff on note pad then..
//Background and Video events
0,0,"BG.jpg",0,120
Change the "120" to "0" to fix this issue =w= - And.. why didn't you mapped the intro ? i know if this easy diff, but keeping consistency with other diff should be nicer o3o
- 00:04:349 (1) - Finish here for changing phase of the music at downbeat and for the splashy instrument 8)
- 00:06:114 (1,2) - Didn't really flow smoothly imo since (2)'s angle is just breaking the flow because it' random angle were didn't give any transition either before or after.. Try arranging them like this for natural flow
- 00:09:055 (5) - Ctrl G H J this slider for typicalyl same reason as ^
- 00:08:467 (4,5) - This hitsounding seems random, you should delete clap at (5)'s start then adding into (4) to follows the drum on the music more precisely here. This creation didn't really make sense for me.
- 00:28:467 (4,5,1) - This overlap really looks ugly and frustating to read for newbies imo :< . Better to avoid them and using a normal shaped slider for (5) to fix this
- 00:38:467 (6,2) - Same issues^ , try moving (2) a bit up to avoid the partial overlap
- 00:40:820 (3) - How about bend this slider's slightly less to create more beautiful angle ? like this
- 00:43:172 (3) - Remove the whistle on this slider's end because it break consistency with (1) when the music were playing the same instrument and same vocals, beside.. it's also sounds weird =3=
- 00:34:937 (1) - I can hear cymbal crash here on the music, may add finish here to give it emphasize ?
- Anyways the rhytm were really messed up in the kiai times here.. ugh it would be a wall of screenshot if i mod this part, i can give you advice for the rhytm on kiai if you can find me on IRC, but as major things. This 00:52:584 (2,1,3,5,3,6,2) - was really didn't fit on the music or vocal since it didn't landed on anything that dominant of the song. Better you'd try rhytm like 2/1 slider + note + 2/1 slider for easy diff since it's easier to follow for newbies.
, also try give a look on normal diff. Since both are beginner diffs, you can try taking a look on the rhytm there as reference - 01:10:378 - You'd better add spinner or break here, since this whole blank part was extremely boring even if it's easy diff
- 01:24:349 (4,1) - Avoid this overlap too please, same reason as before
Overall, i think the Insane and Normal is quite enough for rankable state, but i think some flow on Hard can be improved. Also give a look again on your Easy, the diff really needs much more work compared to others, well sorry for my bad mod. I just can't having a proper way to explain you on how to make a good Easy diff, take a look on some easy at recent ranked maps and you'll know how to make good flow and good rhytm.
Anyways sorry i can't mod alternative since it feels really overmapped for my taste, but meh it's your choice

Good Luck on the way ~