EasyPersonally, would go through and adjust most likely the hitobjects which are 1 beat apart to be a bit closer to each other on the grid. That or adjust everything else with larger timing differences to be a bit farther apart. Basically, just could use some touching up with spacing. Otherwise, looks good, though.
NormalFine.
Egh... I'm absolutely dog-tired.... I will finish up with Hard and Crazy sometime in the morning, before touching anything else... *writes down* Watch for an edit here. In the meantime, this gets a star because it looks pretty clean even from my test plays, and I expect anything I come up with will be minor.
EDIT:
Hard00:31:69 (10,11,12,13) - It's hard to follow here where it's mapped to. I
think it's mapped to the background, though the background seems really obsolete around here. I would recommend changing this part a bit so it can be better followed.
Some technically incorrect spacing in here, but I haven't had any problem following, so other than those beats I think this is fine.
Crazy00:15:38 (5) - Weee nazi~ Just one tiny grid space to the right.

01:47:66 (6) - Technically, this is a little closer to 5 than it should be, though I'd let this slide anyways. Not hard to follow.
02:30:55 (1) - Even I have some troubles getting a 300 on this one, though I'm not going to complain. I'm all for fast spinners (see Ushiwaka's Dance lol), so long as it's 300-able by your probably-better-than-average spinner. Which I can do. Just with a lot of difficultly. XD