From queue:
[General]
There's a weird squeal at the end of your MP3. Fix it!
Your background image is stretched. Steal this one:
https://osu.ppy.sh/b/161349Don't put loud hitsounds on slider ticks as per ranking guidelines:
https://osu.ppy.sh/wiki/Ranking_CriteriaSlider tick hitsounds are discouraged. If you want to use them, then make sure that their volume is balanced (i.e. notably quieter than regular hitsounds). A very loud slider tick, especially when only used once or twice, would be extremely jarring.
[Easy]
I might suggest you redo the hitsounds on this map. Don't put in a hitsound just because it fits the song (ie. don't do loud hitsounds on slider ticks). Instead, make your map such that the notes are in the right place to begin with, and you won't need to mess around with green timing points.
00:42:678 (3) - Make this a 3-point curve instead.
01:03:237 (2,3,4,1) - osu! will offset these for you automatically when it loads the map at playtime, so you don't need to do it manually.
[Normal]
00:25:475 (2,3) - Same point about automatic stacking.
00:27:153 (4,1) - ^
00:54:845 - Add a note.
00:55:685 - ^
01:08:272 (2) - Shorten this to 01:08:482.
01:08:901 (3) - Delete this.
01:08:692 - Add a slider here to 01:08:901.
01:10:789 (4) - Bring this back to 01:10:580.
01:23:796 (3) - Shorten this so that it starts at 01:24:006 and ends at the same place. Then add a note here.
01:24:426 (4) - Delete this.
[Hard]
1.8 slider velocity is too high for Hard.
00:04:496 (2,3) - Again, you're manually stacking these and you don't need to. This is throughout all your difficulties, so I won't mention it again.
00:14:146 - Add a note here with a finish.
00:14:146 - Add a note here with a finish.
00:34:286 - Add a note here (maybe a whistle).
00:36:594 (3,4) - This jump is bad.
00:37:643 (1,2) - Ending this slider on a blue tick doesn't make sense here.
00:14:146 - Add a note here with a finish.
00:41:209 (1,2,3,4,5,6,1,2,3,4,5,6) - Having ALL those whistles detracts from the sound itself. Remove some of the whistles (not all of them).
01:15:405 (3,4) - This jump is weird, because it comes BEFORE 01:16:245 (1). You need to know the slider is there in advance for it to make sense. Personally I'd rearrange this.
01:19:601 (1) - Bring this back to 01:19:810. Ending on a blue tick is weird here.
[Insane]
00:04:496 (2,3,5,6) - Not a big fan of these to be honest. Maybe put whistles on them to accentuate that they're non-standard distance spacing.
00:10:265 (7,8) - Either delete (7), or change (8) to be just a note and not a slider.
00:17:503 (1) - Finish on the start.
00:30:720 (1,2) - Delete these.
00:45:405 - Add a note here.
00:46:034 - ^
00:48:761 - ^
00:49:391 - ^
00:54:845 - ^
00:55:685 - ^
00:57:573 (5) - Delete this.
00:58:202 (2,3) - Remove this jump.
01:01:978 (3) - Get rid of the repeat.
01:02:398 - Add a slider here that's a copy of 01:01:559 (2) but higher up (at 428,52).
01:02:608 (4) - Delete this.
01:04:391 (5) - ^
01:12:048 (4) - This doesn't really play well.
01:15:824 (5,6) - Swap these.
01:27:573 (2) - Move this down near 01:26:943 (4) so that you keep that clockwise motion going.