as requested by CXu, even though I suck at modding

[Normal]
00:29:630 (1,2) - you can make them a bit more neat by moving the middle sliderpoint by 2 grid points lower at (1), and analogously.
00:44:758 (2) - unnecessary finish there
00:44:758 (2) - spacing
01:14:245 (3) - (nazi) move them to the same place as red (4), they keep some nice flow like that
01:25:784 (4) - unnecessary finish, again
01:30:912 (3,1) - swap new combos
01:39:117 (1) - the colors quite repeat, before the spinner you've got a red+yellow combo, and after it - the same, red+yellow. you can start at red color at 1:20:656 (1), should be quite better imo
03:05:271 (1) - ctrl+h perhaps?
03:23:732 (1) - finish spam :c
03:27:835 (1) - ^
03:35:784 (2) - maybe give up on that slider and start the spinner at the big white tick?
[Hardiers]
00:23:989 (2,4) - you can increase the distance in these notes, should look quite better
00:32:963 (5) - you're missing a clap here
00:39:630 (5,1) - swap new combos
00:43:220 (5) - this finish ain't necessary
00:45:784 (1) - it would work a lot better here x)
01:24:245 (6) - delete dat finish, there's a bunch of better places to add it. you can take a look at CXu's difficulty for examples

01:32:450 (6) - ^
there's a lot more to be mentioned, and I guess you know that hitsounding isn't your good side. you did a good job in the patterns and stuff, but they sound too null without some hitsounds. there's a bunch of great places to add them. you can take a look at CXu's difficulty, and try to espy some of them

[Insane]
00:46:809 (2) - place it at the same place as red (1), plays a lot better like that
01:46:553 (6,7,8) - this is quite too much, decrease the snap to 1.1x at least in that pattern.
02:27:835 (1) - this slider could look a lot better

02:56:040 (5,6,7) - once again, that's too much.
well, I'll be adamant with the fact that most of my suggestions are useless, but I hope they'll help at least a little bit.