I was bored and played through each diff. I haven't really modded before, so sorry if some of them are lazy. Overall, I really loved all of the maps. The only issues I really noticed were the timing and spacing of some notes. LMK if you need anything clarified.
Normal
00:32:858 (1) - Slider ends too late. Should end on white beat
00:34:170 (1) - Slider doesn't match song at all
01:35:295 (1) - Should start at 01:35:483
02:32:858 (1) - Should be a note at 02:32:858 and then spinner at 02:33:233. Also, the ending of the spinner should be moved or muted. It's really off-beat
Infamous Hype
00:31:545 (7) - Slider should end at 00:32:108 to match pattern
02:11:295 (6,7,8,9) - 7 should be after 8 to match pattern
02:36:045 (1,2,3,4,5,6,7,1) - Start all of them on white beats. This timing is just a mess
Frozen
00:25:920 (4) - Timing is off. Should be 1/3
02:36:420 (1,2,3,4,1) - The starts of sliders should be on white beats, not red ones
Insane
00:25:920 (6) - Timing is off. Should be 1/3
00:28:733 (5) - Same as above
01:46:733 (4) - Weird SV change
Supreme's Snow
00:41:483 (7,8,9,10,11,12,13) - Should follow pattern and only place notes on white beats.
Extra
02:37:639 (16,1,2) - Very awkward stream jump. You have to go to the right and then immediately to the left.
Rikka's
00:36:045 (8) - Slider ends late. Should end on 1/2 beat.
02:36:514 (4,5,6) - Seems like a sharp turn for no reason
02:37:639 (16,1,2) - Seems like a stream jump for no reason
02:57:795 (1,2,3,4,5) - This stream is different than the rest; would be better to be consistent
Snowstorm
02:37:732 (8,1,2) - This turn-around and speedup seems a bit too extreme. Nothing in the song really signals that drastic of a change in spacing either.
Freezing
00:58:733 (4,5,6,7,8,9) - Consider spacing to follow the change in beat
01:15:233 (1,2,3,4,5,6,7) - Why does spacing decrease when the song stays at the same intensity?
01:35:858 (2,3,4,5,6) - Better, but spacing still seems a bit weird
02:15:421 (4,5,6,7,8,9,10) - 9+10 can stay stacked, but spacing is really random here
02:24:608 (1,2,3,4,5) - 1+2 aren't stacked but 4+5 are... doesn't make sense
02:30:233 (8,9,10,11,12,13,14,15,16,1,2,3,4,5,6,7,1,2,3,4,5,6,7,8,9,10,1,1,2,3,4,5,6,7,8,9,10) - Diff spike seems a bit too extreme for this part
02:53:108 (6,7,8,9,10,11,12,13,14,1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7) - Jumps seem a bit drastic to me
02:59:858 (5,6,7,8,9,1,2,3,4,5,1,2,3,4,5,6,7,1,2,3,4,5,6,7) - Same as both above
Towards the end, the jump difficulty seemingly increases out of nowhere. I'd recommend either making them a bit closer together or easing into them slower and not doing as many cross-screen jumps.
Also, just in general, the spacing during jump sections seems to fluctuate randomly. One line of the song will be half as spaced as the next line without any purpose really. I'd recommend trying to make your spacing consistent for each chorus, still having the last chorus be larger.