First off, I'd much rather see this map end at 2:45ish. 25+ seconds of break time? No thanks. We'll see what others say.
To go with this, out of curiousity; why did you decide to start the map at 44 seconds in? There's parts before that that sound mappable.
Normal:
03:25:31 (5) - What is this here for? >>
Hard:
00:57:17 (3) - Shorten 1/4 beat.
01:09:40 (5,6,7,8,9,10) - Consider moving these out from beneath the 4. I was able to read it fine, but it's kind of annoying.
01:23:94 (2,3) - Sounds nasty~
02:42:40 (2) - Shorten 1/4 and move it 1/4 forward.
03:11:94 (1) - Interesting work with the sounds on this section. I kinda like it.
03:41:47 (3,4,5) - These don't really go to anything.
On another note, I don't like these maps in general. Your choice of what you mapped seemed rather random, often changes mid combo, and it's very off-putting.