I'm thinking of making a map for this song too. Never mind, let's see...
Timing is perfect and beat placement is great and fun to play, especially the hard one. However, on Normal level, the beat pattern from 3:00:41 to 3:06:63 gets too much overused by this late in the song (many people will notice this by the fact that the pattern repeats itself for four times near the end of the song). Try rearrange the beats (not just flip them) or create a new pattern should help. And I suggest you should reduce the tick rate for sliders in the Hard level from 4 to 2 because the tick was too fast and didn't go along well with the song. But this is trivial, though. If your intention is to make sliders harder for the Hard level then I have no problems with that.
Also, the MV got broken on my machine. Maybe .mpg isn't well supported by ffdshow or something?