Sorry I took so long. As per your request:
[General]
Insane's last uninherited timing section is ahead of all the other maps by one ms. Please line this up.
End kiai on all difficulties.
I didn't like how there were so many different points in which breaks were used for your own difficulties. It'd be better with consistency in that regard.
[Easy]
00:57:062 (2,1) - I've been ignoring a lot of the short repeating sliders into 1/4 notes in this so far, but this one is too much. Please try something different - it's confusing to have a short repeating slider like this with a note so quick afterward. Newer players wouldn't know when the slider is going to end until it's too late.
01:15:981 (1,2,3) - I also recommend against stacks in easys, but this one is too much compared to the rest. Please try something else.
02:16:523 (1,2,3) - ^
02:34:860 (5,1) - Stacking sliders, orz. Not on an easy, please.
02:36:024 (1,2,3) - This plays kind of awkwardly. Maybe delete the 3.
This difficulty would be just fine if it was labeled as a normal. But when it's labeled as an easy, and it's vying to be the easiest of a 6 difficulty set, I expect a fairly easy difficulty considering the spread possibilities. Try to comb through this and see what rhythms you can simplify, and make the map easier to read (mostly looking at the stack usage). A larger circle size would be nice too, but not needed, though the difficulty settings are very very high for an easy difficulty.
[DC's Hard]
lolstarrating
01:38:975 (3) - Hooray for symmetry
01:41:304 (3) - ^
[Normal]
00:35:814 (1) - Remove new combo
00:36:396 (1) - ^ Apply to other instances of this rhythm
00:57:935 (1) - ^
01:36:647 (3) - Maybe reposition/reform this to reduce overlap?
01:44:506 (7) - This looks really off compared to the previous six notes (though I wouldn't mind if you refrained from such a strong boxy pattern)
The last kiai section was... kind of boring. All box mapping and just 1/1/1/1/1/1. Try to spruce it up a little with varying rhythms and such.
[Roley's Mix]
Reduce stack leniency to this:
00:27:956 (1) - That way this part doesn't look so goofy.
00:08:757 (1,2) - I was kind of expecting these two notes to be with the drums
01:58:768 (1) - Remove that clap. :<
This diff is pretty nice except for the general presentation. Most of the sliders looks really bad with sharp curves (and are possibly catmull?) followed by straight lines and 90 degree angles. Think you can make it just .. look better while still capturing the feel and general flow of the map?
[Insane]
00:47:166 (1) - Remove new combo, etc. for later instances of this rhythm.
01:31:408 (1) - If you're going to do small new combos like that, make sure to do it throughout the song. Otherwise it just looks accidental/half-assed when it doesn't happen later on (01:36:065 (3) - )
01:38:102 (1) - Reduce overlap please. This is pretty bad.
02:22:053 (1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4,1,1,1,1,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8) - No offense, but this is kinda meh. It's a enta spam followed by a giant 1/4 stream, all box-mapped. Can you try to make it more... interesting rhythmically and visually? Try throwing in some small jumps on strongly-accented vocals, mix in some longer sliders for some rhythmic variety... please? :3
[MM's Taiko]
I'd call in some taiko mappers to give this a try. The finish use leaves me a little wary. Try lepidopodus, zekira, arien666, or Rokodo for starters.