I've mapped this song before (unsubmitted) and I noticed some minor snapping errors with the maps. Also some parts felt kinda awkward to play.
LC's Insane
00:01:684 (1,2,3,4,5,6,7) - The gap there and at 00:13:861 feels kinda weird to me, and there's certainly a sound you can map a half beat circle to there, which I'm sure you've noticed, but if that's just your style, then ok, but I think it would feel better to play without the gap.
00:08:743 (1,2) - I feel the same way about these. The first time you use them, it's kinda fitting because there's a sound in the song for the starts of both of those sliders, but here it just feels weird to play. And you keep repeating this for the rest of the intro, again, it doesn't rhyme, but I suppose it's tolerable and subjective, but I for one find it awkward to play.
00:34:949 (4,5) - The doubles you use here and for the rest of this calm part don't rhyme accordingly, the circles should be placed on the beat and quarter beat snaps, not quarter beat and half beat. Just feels really weird to play, should be fixed.
00:49:331 (5,6,7,8,1,2,3,4,5,6,7,8) - The stream should begin at the orange 1, not at the purple 5. I can't hear any quarter beat piano in the song until the orange 1, only half beat piano. And if you said that there is a quarter beat piano at the purple 5-8, it's not audible enough. Feels weird.
01:03:802 (1,2,1,2,3,1,2,3,4) - Why so many new combos here?
01:12:272 (1,2,3) - Incorrect snapping. The first slider should end at the 4/8 beat preceding the half beat. Second slider should begin at the 3/4 quarter beat preceding the 7/8 beat. The third slider should start at the 8/8 preceding the 1/2 beat. You can halve this slider in half and make it a reverse slider that reverses at 2/8 and ends at the 5/8, it rhymes a looot better that way. You can replace the little stream with a 1/2 and a 2/2 circle. Or you can keep the stream and not use a reverse slider at all, though it would be more fitting with one. The other maps also seem to have this problem from what I saw.
01:15:272 (1,2,3,4,5,6) - Hitsounding here is weird. Also, more incorrect snapping. Same thing, Slider 4 should preferably be a reverse slider which reverses at 4/8 and ends at 7/8.
01:20:743 (1) - This is also incorrectly snapped since it should end at a half beat, and not be a reverse slider in the first place, even though it does sound and feel relatively good. Same thing for 01:23:567 (1) -
01:26:566 (1,2,3,4,5,6) - Same problem as in 01:15:272.
02:15:449 (3,4) - This could be a triplet.