Posting as a self reminder to mod this tomorrow. Midnight here and I'm running low on time so I'll mod it tomorrow. I played through all three difficulties. I like the jumps on Insane. Noted a few things, need to take a closer look tomorrow. Everything looks good, star in advance since it's already fairly awesome.
Edit:
Normal
0:05:464 - Is this timing section necessary for Normal? o.o
I really have nothing to say. It plays fine. I can't decide if it has too many finishes or not. So I guess consider that.
Hard
00:07:209 - Add a note here? Then move 4,5,6 1/8th of a beat right and realign.
00:42:288 - Add a timing section here to make the end of the spinner silent.
00:40:816 (4) - naziDown one?
02:09:503 (7) - Beautify. Looks a bit sloppy. Attached picture with example of what I was thinking. You could stretch that out a bit too.
Insane
00:32:598 - I'd just add a note here.
00:42:676 (1) - Combo breaker makes me sad. A little hard to see too? Hm.
01:17:562 (2) - I think you could do a few x0.5 BPM slower sliders in a few spots, such as this one. I think this applies to Hard and Normal as well, I can't remember if you did this or not anywhere/where.
02:15:124 (1-8) - What? I see what you did it just threw me off.
02:31:791 - Note here in the middle would amuse me.
I have no general thoughts atm. Everything looks fine. Maybe I'll try looking at it again later and editing this post again. I was trying not to align nazi like I do fairly often, and look at more than 'move by 1 grid' things.

Edit:
Normal
0:05:464 - Is this timing section necessary for Normal? o.o
I really have nothing to say. It plays fine. I can't decide if it has too many finishes or not. So I guess consider that.
Hard
00:07:209 - Add a note here? Then move 4,5,6 1/8th of a beat right and realign.
00:42:288 - Add a timing section here to make the end of the spinner silent.
00:40:816 (4) - naziDown one?
02:09:503 (7) - Beautify. Looks a bit sloppy. Attached picture with example of what I was thinking. You could stretch that out a bit too.
Insane
00:32:598 - I'd just add a note here.
00:42:676 (1) - Combo breaker makes me sad. A little hard to see too? Hm.
01:17:562 (2) - I think you could do a few x0.5 BPM slower sliders in a few spots, such as this one. I think this applies to Hard and Normal as well, I can't remember if you did this or not anywhere/where.
02:15:124 (1-8) - What? I see what you did it just threw me off.
02:31:791 - Note here in the middle would amuse me.
I have no general thoughts atm. Everything looks fine. Maybe I'll try looking at it again later and editing this post again. I was trying not to align nazi like I do fairly often, and look at more than 'move by 1 grid' things.