From
.:Let those mod those maps:.[General]
Delete .osb files and full submit if you aren't using a storyboard or the same storyboard across all difficulties.
If you would like, you can delete all your bookmarks to decrease the size of your .osz file by a little since you won't be needing them by the time this gets put on the server.
You might want to consider cutting the mp3 to a fadeout, seeing how the end is just cut anyway. This will further decrease the size of your .osz file, lessening the load on the server.
[Easy]
00:24:830 (1) - Seems to me you wanted this to be symmetrical. Here's a slider that keeps the shape and is a bit more symmetrical:
384,288,24830,6,12,B|480:312|536:200|480:88|384:112,2,320
00:36:830 (1) - Same with this one; I kept the shape but made it more symmetrical:
288,240,36830,6,4,B|336:216|408:240|424:288|424:288|408:336|336:360|288:336,1,320,0|4
01:24:830 (2) - Placing this at x:80 y:128 might be better spacing.
02:06:163 (1) - The spinner should be extended to 02:08:829, and 02:08:829 (1) - can start at 02:08:996 or 02:09:163 in return: this would follow the vocals closer since you you want the spinner to end when Miku sings "ta". {apply this to all diffs}
[Normal]
00:28:496 (2) - This looks to be sticking a bit close to (1). Try x:176 y:40.
00:29:496 (5) - This looks too close to (4). Try x:336 y:160.
00:38:829 (3) - New combo here might be better. If you do this, remove new combo from 00:40:163 (1).
01:20:496 (4) - Positioning at x:32 y:204 might be better for spacing.
01:25:163 (5) - Try x:256 y:260 for a more regulated spacing. It's important in these kinds of section since you have many 1/1 notes at a regular spacing in a row.
01:54:496 (1) - I think you can map this section without having copy and pasted from the last chorus. The map is only just over two minutes long, so having copy and pasted a whole chorus is very noticeable. But it's up to you.
[Hard]
00:01:829 (1) - Remove the new combo here.
00:03:829 (6) - New combo here.
00:05:329 (1) - Remove the new combo here.
00:06:163 (4) - New combo here. {these four changes make the combos more natural; as of right now it feels awkward for 00:06:163 (4) so the former three changes were needed}
If you applied the above, then: 00:07:163 (1) - RNC and 00:08:829 (5) - NC
00:13:996 (1) - The new combo should be placed on 00:14:163 (2) - instead.
00:23:496 (4) - The Finish isn't very fitting; consider taking it out.
00:43:496 (1) - This crumpled slider doesn't fit very well with the music. Instead of having something like this to manipulate slider velocity, consider simply changing the 'slower parts' of the song to x0.75-x0.8 sv via F6. It appears you don't have any slider velocity changes at all, so this may actually be better since this is a Hard diff.
01:54:496 (1) - I'm going to mention the same thing about the copy and pasting. You didn't copy and paste in the Easy diff, so you can definitely think of something for the Normal and Hard.
[Winber1's Insane]
This diff was very awkward to play due to all the unevenness in the spacing. AR9 might play better, but would require more testing.
00:23:996 (6) - Even if you're going to do this, at least make sure (5,6,7) share a close enough spacing. Right now spacing differs by 0.06x, and is quite visible. Try this, and do something about the second part of the slider:
232,192,24163,2,0,B|180:188|156:224|156:224|108:216|68:236|40:276,1,210,8|8
00:33:496 (1) - At this point, maybe x0.5 sv is too much of a decrease, since the player isn't given very much notice at 00:40:830 (1) and the note density is considerably high there.
01:19:496 (1,2,3,4) - You may want to keep these antijumps of sorts the same spacing as you did before at 00:28:829 (1,2,3).
01:56:829 (1) - Then the same thing about the copy ans paste.
[Backfire's Taiko Oni]
Since this is Oni diff, consider raising HP and/or OD above default. 6 may work nicely; I was SSing without much difficulty at 5.
Consider raising overall volume; there were parts where I couldn't hear much of the Taiko at all.
Good luck :3