aThanks for the check!
00:19:695 (162,163,164,165,166,167) - to fit better with the pattern at 00:20:510 (172,173,174,175,176) - you should use kkkdkk here. That makes the kat usage for 00:20:021 (166,167) - appropriate and consistent. I understand the reason of it. But, 00:10:565 - starting from here to that part I've followed guitar mostly. So, I thought that it's time to follow the drums, which in this case this pattern fits the best.
00:25:808 (221) - kat here would sound pretty neat but nothing major you'd have to change. I wanted to make these patterns as various as I can do, and 00:28:417 (246) - this note is kat, so keeping it don provide the variety on those patterns.
00:30:862 (269) - either remove or make this to don, the kat spam shouldn't start already with (268) but with (270). I don't see why though. 00:30:781 (268,269,270,271,272,273,274) - Those notes are all on snare sounds, so I don't want to change it tbh.
01:07:952 - if you don't feel the SV is too low, I'd suggest to change it to 1.12x. It looks nicer to me but it's a matter of taste. Apply that for the next lines too. Applied.
01:22:707 (752,753) - The kdkkdkdd rhythm is.. odd. you should swap the two notes. I don't see why not? Changed.
03:51:646 - 03:52:298 - honestly, that SV increase is just random. I don't see why to keep that. Agreed, deleted the SV changes between the middle section.
Up to you if you want to have some more people to go over the map, let me know whatcha want.