Okay, lets see.
[General]:
.
I tried to match the hitsounds to the music, but these are mostly suggestions (apart from stuff where you would probably add a finish or a clap).
Good luck!~
[General]:
- The default hitsounds is a little too quiet imo. Maybe raise the volume to 80~85%?
- While the map isn't as hard as a real insane, the difficulty settings sure make it quite hard for a hard. AR8 fits, so no problems there, but OD8 in a hard diff is just meh. I highly recommend lowering it to 7 atleast.
- 00:29:981 (1) - Finish at the start? (it's in the music atleast and you used it later on in the map)
- 00:44:981 (3) - ^
- 00:55:996 (6) - Suggestion: move this note to the right side of the slider? Plays better. Like this.
- 01:18:729 (6) - New combo (for consistency atleast), remove NC from next note.
- 01:26:229 (11) - ^
- 01:41:111 (1) - This note is very hard to read while playing. Noone would guess it's on a blue tick. Maybe think of something else or put it to the white tick? (i'd prefer the latter)
- 01:59:978 (1) - Finish at the start?
- 02:15:914 (9) - I don't like the finish on this note. Consider removing it as it doesn't follow any similar sounds in the music.
- 02:17:788 (1) - Finish at the start. (you used it later as well)
- 02:32:788 (3) - Finish at the start?
- 03:32:082 (1) - Finish on the spinner.
- 00:33:731 (1) - Maybe remove finish? Not in the music atleast.
- 00:41:231 (1) - ^
- 00:43:106 (3) - ^
- 00:48:731 (1) - ^
- 00:56:230 (1) - ^
- 00:59:980 (1) - Finish here.
- 01:14:979 (1) - Finish at the start.
- 01:18:729 (1) - Remove finish? Not in the music.
- 01:24:354 (3) - ^
- 01:24:354 (3) - ^
- 01:33:260 (7) - ^ (at the end though in this case)
- 01:39:353 (3) - ^
- 01:41:228 (1) - ^
- 01:46:853 (4) - ^
- 01:48:728 (1) - ^
- 01:50:603 (3) - ^
- 02:01:852 (3) - ^
- 02:03:727 (1) - ^
- 02:05:602 (5) - ^
- 02:09:352 (3) - ^
- 02:24:819 (6) - Clap.
- 03:13:567 (4) - Clap.
- 03:47:316 (1) - ^
- 03:48:253 (3) - ^
- 03:54:347 (1) - Remove finish.

I tried to match the hitsounds to the music, but these are mostly suggestions (apart from stuff where you would probably add a finish or a clap).
Good luck!~