Separated by who mapped what.
[General]
00:16:744 - It sounds to me that the time signature for this section is 3/4 with some metronome resets at places like 00:21:976 - 00:22:325, and your NCing also seems to agree with that. I'm not entirely sure on this though, so please seek out some additional opinions for this.
[Mir]
00:00:000 (1) - I might be deaf, but I can't hear anything here, and I hear the sound starting instead on 00:00:348. Additionally, i'd suggest a slower SV here for some contrast with 00:03:023 (1) - which has a more prominent sound.
00:09:186 (2,3,4) - Maybe you could experiment with some sort of decreasing SV here, since the pitches are decreasing here.
00:11:162 (1) - I'm not the greatest fan of this, since though it does capture the increasing intensity here, it just doesn't have the same effect that continuing the pattern at 00:09:186 (2,3,4) would.
00:17:790 (1,2,3,4,5,6) - I suggest making these three 1/2 sliders to have a smoother progression from 00:16:744 (1,2) to 00:18:837 (1,2,3,4,5,6). It seems like a big jump from the previous pattern as is, though it does stress the following measure more.
00:21:279 (3,1) - I don't really see why this deserves the spacing increase when there is no difference here than 00:18:837 (1,2,3,4,5,6), at least in terms of what you're following.
00:57:209 (1) - Seems like quite a weak beat that you skipped before at places like 00:48:837. Consider removing this.
01:23:721 (1,2,3,4) - It seems like you have a directly contradicting movement concept from what Shiirn does for this at 04:00:001 (1,2,3,4). His emphasis for the bass drums come from anti jumps while your emphasis comes from jumps. Additionally, what you have here adds a ton of stress to 3 due to the anti jump + direction change. I suggest trying to use movement similar to what Shiirn did in order to avoid disproportionate emphasis on beats you don't want to stress.
01:26:512 (1,2,3,4,1,2,3,4,1,2,3,4,1,2) - Love it.
01:28:605 (1) - Holds for wubs this strong are kind of lame, I suggest an SV increase to have some more movement here.
01:52:151 (1,1) - Your slow slider combined with the low spacing to it takes away a lot of stress from the otherwise strong beat on 01:52:674 (1). I suggest increasing spacing and having the player pull off the slider earlier. I'd probably do
something along these lines but you can probably find something better.
01:53:634 (1) - Kinda similar to the above, but i'd do something like
this to add some more emphasis to 01:54:070 (2). Rip your aesthetics though.
01:54:331 (5,1) - I'd suggest incorporating something similar to what you did with 01:59:912 (5,1) here for some emphasis on this strong beat.
02:53:721 (1) - This slider stands out quite a bit for a sound that isn't that special, since you used nice curvy shapes earlier in this section.
02:56:163 (1) - I hate spinners like this, since the sound is decreasing but the spinner causes increased stress on the movement. I'd suggest a slider that has higher SV that increases in curvature (as the player follows the slider they have to move less), then mapping the decreasing intensity wubs or whatever they are.
03:13:256 (1,2) - This is legit amazing.
[Shiirn]
00:29:302 (3,1) - Seems to be the only set of 3 that doesn't have a spacing increase between them. A solution to this would be Ctrl+G with 00:28:953 (1,3), but you might still want to keep the movement concept between 00:28:779 (2,1) - 00:30:349 (3,1) - .
00:35:930 (3,1) - Yeah i'm not really seeing the need for this spacing increase compared to 00:33:837 (3,4) . Seems like a Ctrl+G would fix this so i'd like to know your reasoning for this.
00:42:558 (3,4) - Here's a pitch increase you didn't do a spacing increase for.
02:15:000 (2) - Honestly, this slider made my day, I love it.
03:32:093 - I'd suggest increasing the rhythm density gradually, since your spacing indicates that the song is increasing in intensity, but its a bit too subtle of an effect imo, which makes the transition to 03:43:256 seem a bit large.
A lot of the mod is just suggestions on incorporating some more movement concepts into the map, so I'd suggest discussing any changes you're interested in applying with each other before applying them.
Good luck!