01:08:037 (1) - not particularly good looking slider, get a lil creative, put some spice on it
00:36:939 (5) - missing hitobject on drum. i know you're going for the guitar here, but you could kill two birds with one stone and place 1/2 sliders on the guitars instead, covering the drum on the slider end in the process
00:36:024 (2) - i spotted some inconsistencies when listening, and you seem to sometimes put triplets where there are no sounds to support it, and then 00:35:476 (5) - miss them as well. perhaps give the song another listen and place triplets accordingly. (i know using triplets as emphasis on strong beats regardless of whether there's any triplet sounds to support it is often used, i personally prefer only putting triplets where the song supports it)
00:00:720 (1,2,3,4,5,6,1,2,3,1,2,3,4) - this whole section could use less object density to really make the intro pop after the spinner
while i don't agree that contrast is minimal between those parts, i do agree that i've completely neglected the fact that hitobjects can occupy the same space on the playfield in short succession. i'll try and "nerf" the slower parts to make for better contrast between the regular time parts and the ones that go double-time