M4M
[Normal]
00:14:930 (4) - It'd be cool if you used the same shape as 00:11:441 (2) here, since both sliders are mapped to the same guitar sound and the addition of a red node represents that white tick you have to skip.
00:20:685 (3,4,1) - I'd recommend increasing the visual distance between the tail of 3 and head of 1 here, since I don't think the curve is obvious enough on 3 to indicate that the player has to hit 4 first.
02:33:592 (2,3) - I get the feeling that this would be too uncomfortable to hit for newbies, but it might be fine. I'd just recommend that 3 follows the curve of 2 better here as opposed to a blanket to fix this.
03:11:441 (5,1) - Might be worth mentioning that this is the only overlap you have in this difficulty, which makes it a bit inconsistent. If this bothers you, I'd recommend changing it by just flipping 03:11:965 (1) horizontally and rearranging 03:12:837 (2,3) to accommodate the distance change.
[Advanced]
This DS tilts me for whenever I see 1/2 in the 1.0x SV sections, just because of how slight the overlap is. I'd recommend 0.9x, since it looks like you lowered the DS for the 1.05x SV sections to 0.8x.
01:51:558 (2) - The repeat doesn't land on any audible blue tick here. I get the feeling snapping is a bit weird here, but at least there's bass guitar backing the sound at 01:51:906.
I'd recommend this rhythm.
03:04:988 (1,2) - It'd be cool if you spaced these with your normal DS for some contrast with 03:05:860 (1,2).
[Hard]
00:06:732 (3) - Extend to the next blue tick for consistency with the rest of the difficulties (Advanced aside).
00:18:069 (3,1) - This should have 1.6x DS for consistency with what you did at places like 00:15:802 (2,1).
00:32:546 (2,1) - For the previous section with this rhythm, your spacing was 1.6x, not 1.7x.
00:35:337 (2,1) - Should be a 1.6x jump here for consistency.
01:06:034 (4,1) - This jump looks like quite a big difficulty spike considering the rest of the jumps here. I recommend using a different pattern for 01:05:511 (2,3,4) for a more readable pattern here. I guess your spacing should end up with 1.6x here for consistency.
01:36:558 (1,2) - Probably last one of these i'll point out but yeah, fix your downbeat jump consistency.
02:30:453 (3,3,3) - Cute
Yeah it's pretty much just consistency among jumps in this difficulty, everything else is great.
[Insane]
00:03:593 (3) - I don't hear anything on this slider end. It's fine to have an extended slider here but please silence the end.
00:21:732 (1,2) - Considering there isn't any more 1/3 in this diff, I'd honestly simplify this to a repeat, but these are Insane level players we're talking about so this isn't necessary.
01:02:197 (3,4,5,6) - I expected some 1-2-1-2 NCing here.
[Expert]
01:57:313 (1,2,3,4,5) - I can't really understand why this is shaped like this since you've had so many other normally shaped streams for similar sounding parts like 01:51:034 (1,2,3,4,1). I like the idea but it'd be nice to see it used more consistently, because right now it does feel out of place.
Nothing more to say here, this diff is amazing.
[Delusion]
00:08:651 (1,2,3) - The expert had these sets of 3 with increased spacing to the third object, curious as to why you're not doing the same in this difficulty. Sometimes you do do it though.
01:06:383 (1,2,3) - I don't really see a purpose for such a harsh movement here. This is also inconsistent with 01:17:546 (1,2,3,4) and other rhythms like it.
01:08:476 (1,1) - You could increase this spacing more, I know you want that big movement here.
02:43:534 (1,1,2,3,4,1) - Honestly this direction change might be a bit much, considering spacing is also increased here. You may want to get more opinions on this or leave it anyways for mass tilt.
That's everything I've got for you, great set!