Some pretty general stuff
Generaluse some combo colours? I don't feel that the yellow or red complements the BG
Don't use the same slider velocity for all difficulties, vary it, use faster ones for the harder difficulties (under Timing Tab)
NormalThe Normal does not follow Distance Spacing throughout the song, please ensure that the spacing between all objects is the constant for the whole song, use distance snap to ensure this
Because distance spacing wasn't adhered to, I won't go any deeper in regards to spacing and positioning
01:16:219 (1) - have soft hitsound finish here
01:21:160 (4) - I encourage you to split this into 2 sliders, instead of using a repeat slider, it helps people read it better
01:32:454 (4) - ^
Hard00:03:337 (2,3) - this shape looks weird, I also feel an anti-jump isn't the best fit here, you should at least rotate the sliders such that they match each other, something like symmetry
00:04:925 (3,4) - also don't see why they have to be so close to each other, I feel the spacing used at the start of the song is quite poor, it's not very defined
00:14:454 (1,2) - make it look better, allow the direction to be fluid and matching
00:22:925 (1) - you can make it blanket 00:21:866 (4) better
00:29:278 (3,1) - unstacking would be better
00:44:807 (3,1,2) - placing them like this makes it look quite cramped and messy, you should reposition them or space them out more
00:46:219 (3,1) - unstack them
00:47:984 (1) - finish on start of slider
00:51:866 (3,4) - unstack them, and also for previous similar patterns, why didn't you add a new combo for 00:52:219 (4) like before
00:53:101 (7,8) - looks odd as it's the only one with a different distance spacing
01:11:101 (2,3) - this is a really weird rhythm you're using here in Hard, I think you should change it here, it's quite spammy
01:11:631 (4,5,8) - space these much more, they are too close, it makes things harder to read and comprehend
01:14:101 (2,3,4,5,6) - why did you lower the spacing here, especially in the kiai time, it just doesn't seem to fit
01:16:748 (2,3) - you should change this rhythm as well, it's too dense
01:17:631 (6,7,8,9,1) - increase the spacing, this is too cramped and messy
01:19:572 (2,3) - same as 01:16:748 (2,3) and 01:11:101 (2,3)
01:22:395 (3,4) - ^
01:23:807 (6,7) - going back to where you were just beforehand, this gets blocked and looks untidy and could affect the player, and could cause difficulty in playing
01:25:219 (3,4,5,6) - you should not use such rhythms here
01:28:043 (3,4) - ^
01:30:866 (4,5) - ^
01:33:160 (1) - finish on start of slider
01:41:984 (4,1,2) - reposition them, they look messy with the unnecessary overlaps and 01:41:984 (4,1) don't match well, with them touching
The rhythm needs to be improved, the objects used should not be such sliders, especially the 5 1/4 beats pattern. Spacing used is not fitting and can confuse players, placement can be improved
InsaneThis difficulty looks quite raw as well, I will give some pointers for it:
Use better shapes for the streams like 00:25:925 (2,3,4,5,6) and 00:27:337 (2,3,4,5,6) - they look untidy and random, smoother shapes here would be better
Spacing is too random and changes all the time. I know it's not the easier difficulties but spacing has to be respected and used properly and wisely to be good, it's what helps players read the map well and right now the spacing you use is quite incoherent. Spacings like 00:29:101 (7,8,9) and 00:31:043 (1,2) and 00:37:395 (5,6,7,8,9,1)
Spacing is really too small here, it's very cramped and it makes the map look bad in presentation. This is honestly also due to the low slider velocity used, since you did not change the slider velocity at all for any of the difficulties
01:17:631 (11,1) - this rhythm doesn't even fit the music honestly, 01:17:984 (1) sounds especially off
01:21:690 (2) - ^
No hitsounds used please add them
A very long way to go, but I wish you good luck