Since I really want to see this posted, I'll point out my qualms:
0:00 - I thought that first bit was some kind of Windows error sound at first, but looking at it, it adds to the live feel. Not really necessary though.
1:27 - Probably nitpicking, but that last note on the arpeggio to top it off seems delayed by a split second. May be just me.
2:34 to 3:10 - The lower notes are noticibly scratchy. Easy fix, right?
4:03 to 4:05 - Scratchiness again
5:00 to 6:00 - You seem to go on a major tangent with some tempo variation to the main theme, but it comes off as disharmonic in some parts rather than artistic.
Otherwise I loved it. Strays enough from the original to be new, but doesn't go too far. Good work.