[Collab]
01:01:749 (2,3,4) - Here the hitsounds sound a bit weird
01:29:536 (3,4,5,6,7,8) - Perfect triangle maybe? XD
01:37:405 (3,4) - I would use CTRL+G here because it's more fun
01:38:634 (1) - I would move this note under 01:37:650 (4) - this one
01:41:585 (3,4,5,6) - I would make a stream here
02:53:388 (2) - Add a note here
03:04:454 (4,5,1,2,1,2,1,2,1,2) - Here the spacing is strange

[Hard]
00:35:191 (1) - Add a new combo
00:51:667 (1) - Remove new combo
00:52:159 (1) - Remove new combo
01:56:585 (1) - Remove new combo
01:57:077 (1) - Remove new combo
02:13:798 (1) - Why don't you put a break here just like the other mappers?
02:51:667 (1) - Remove new combo
02:52:159 (1) - Remove new combo
03:08:142 (1,1,1,1) - Remove new combos

[Normal]
cool enough ~