General
Your background is the wrong aspect ratio! Make it 4:3!
Natteke's color choice is the better one, make all the diffs use that color scheme. (yes idc if it's a signature it looks best on all the diffs)
Less than three
00:52:121 (4,5) - Spacing
01:16:193 (1) - Make this start where the 4 was
01:26:253 (3,4) - Bad overlapping, make it not overlap
01:30:205 (1) - This isn't good for an easy. Remove it/make it clearer
01:30:744 (1) - Sounds better ending on the red tick
02:02:540 (4,5) - Bad overlapping
02:09:726 (1,2,3) - Why so stacked?
02:15:115 (4,5,6) - Bad overlapping ahhhh
02:30:924 (2,3) - ^^
02:33:798 (2,3) - ^^
02:39:726 (2,1) - Nasty antijump, move the 1 far away
Lanttu
00:33:079 (1,2) - Although the 1 indicates how fast it is going to go, the 2 does not, so it's unrankable.
Shiirn sucks etc
Tickrate 1
00:40:265 (1,2,3) - These are far too clustered together, it's a mess
00:43:139 (1,2,3,4) - ^^, spacing is pretty bad too
00:44:576 (1,2,3) - Too clustered, looks awful
00:47:630 (1) - Move 2 grids up
00:53:020 (4,1) - move 1 grid right
01:03:978 (3,4,5,6) - Don't make all of these stacked, keep the game moving
01:09:726 (3,4,1,2) - Holy clusterpoot batman, make these not so clustered
01:11:882 (1,2,3) - Ugly as all hell, make it not overlapping so much and fix up that spacing
01:17:630 (1,2) - Make these endpoints overlapping
01:23:379 (1,2,3) - Make this more symmetrical, right now it looks like it has bad spacing even though it doesn't
01:26:253 (1,2,3,4) - Bad spacing and it overlaps too much
01:27:690 (1,2,3,4) - Why so overlap
01:30:654 (1) - Make this end on the red tick before
01:47:630 (1,2,3) - That spacing is really bad
01:57:870 (1) - Move 1 grid right
02:09:367 (1,2,3,4) - Too clustered imo, also the 3 should start precisely where the 1 ends
02:17:271 (2) - Move this 4 grids down please
02:19:606 (1,2,3) - These shouldn't overlap
02:22:480 (1,2,3) - ^^
02:24:816 (2,4,5) - ^^
02:27:151 (2,4,5) - ^^
02:36:852 (1,2,3,4) - Spacing
Natteke
Lots of nazi in this one, it's good nazi tho imo
00:42:960 (4) - Move 1 or 2 grids down, is more pretty and still has good spacing
01:16:732 (2,1) - These shouldn't touch
01:49:247 (1,2) - Changing slider speeds in same combo with no indication of it is unrankable
So shiirn's diffs have more issues, but the guests have unrankable slider speed