00:11:779 (1,2,3,4) - You can't really hear what this has been mapped to, might consider lowering this section volume or gradually increasing it with each slider.
00:24:808 (1,2,3) - This doesn't make much sense if you're following the vocals, this might be more consistent with the vocal line and the previous mapping:
00:26:008 (1,2,3,4,5) - Doesn't really feel like it matches the vocals and then immediately switches to the bassline. I'd rather wait until 00:28:922 (1) because that's when the bass starts kicking in and look for a smoother transition.
00:35:437 (5) - Replace with a hitcircle.
01:33:208 (4,5,6) - Feels weird
01:34:580 (4,5,6) - If you're following the bassline, then don't map the vocals for a couple of seconds and then continue with the bass. The pause, hitcircle and pause again breaks the momentum.
01:37:837 (1,2,3,4,5,1,2,3,4,5,6,7,8,9) - Another sudden stop and switch to vocals.
02:22:751 (6) - This slider looks so 2006-ish
02:43:322 (1,2,3,4,5,6,7,8) - Too much spacing between jumps?
03:07:665 (7) - Consider adding two more notes after that one.
04:06:980 (1,2,3,4,5,6) - Sudden stop and switch away from bassline
04:12:465 (1,2,3,4,5,6,7) - Same but this one doesn't feel as disruptive as the previous.
04:17:951 (6,1,2,3,4,5,6) - ↑
04:20:180 (7) - New combo
04:22:922 (6,7,8) - Feels lacking without a hitcircle after the triple.
04:23:951 (2) - Shorten this slider 1 tick
04:24:808 (6) - Wouldn't it feel better with another circle between that one and the new combo?
04:35:265 (4,1) - Add a circle between those two and make it the same combo, matches better the vocals
04:40:751 (4,5) - ↑
05:23:780 (5) - Another sudden change to vocals.
05:24:294 (1) - If you want to follow the vocals, make this slider longer (until the red tick), matches better the voice and it's consistent with 05:25:665 (6).
05:27:894 (1,2) - Again, if you're following the vocals, don't stop suddenly to focus something in the background. You're missing the first syllabus at the red tick after the second slider.
05:33:380 (1,2) - ↑
05:30:637 (6) - Add a note after that slider?
05:55:322 (4,5,6,1,2,3,4) - 3 long sliders might be more appropriate than those chained sliders.
06:02:865 (1,2,3,4,5) - Mistimed
06:11:265 (1) - Maybe delete this note?
06:13:408 (2,3) - I'm not too convinced about that doble, a triple might fit better.
06:16:151 (2,3) - ↑
07:03:894 (1,2,3,4,5,6,7,8) - This is literally screaming "stream incoming" but there is no stream after it. Also a bit overspaced imo.
Regarding kiais:
Kiai #1 should end at 01:08:694 (2), or at 01:29:094 (6) if you consider the pikagirl lyrics as part of the kiai.
Kiai #2 should start at 02:47:437 (1) and end a beat after 03:07:665 (7).
Kiai #3 should start at 03:31:322 (2), end time is ok.
Kiai #4 should end at 04:48:122 (5), start time is ok.
Kiai #5 should end at 05:37:322 (4), start time is ok.
There should be a kiai between 05:38:865 (1) and 06:00:808 (3).
Kiai #6 looks fine.
Kiai #7 should end at 07:27:208 (1).
On a more general view, I felt like there was a lack of triples, especially when it comes to following the bassline because it usually allows for them more than the vocals and make it less plain than just using sliders. Also the "back and forth" pattern might be nice if ocasionally used but it feels a bit overused: 02:53:608 (3,4,5,6) - 03:06:637 (1,2,3,4,5,6,7) - 03:26:351 (1,2,3,4,5,1,2,3,4,1,2,3,4) - 03:31:837 (1,2,3,4,5) - 03:42:808 (1,2,3,4,5,6) - 04:11:094 (1,2,3,4,5,6,7), etc. Please considering adding other patterns because it starts to feel repetitive after a few uses.