Hate to say it, but...
Sounds to me like you just took two different songs and slapped them together. It just doesn't fit. The extradrum just doesn't sync up, then there's the background music, which doesn't match at all.
Sorry, but you gotta do better. Nice effort though, there were some decent moments like from 3:20 to 3:50, but after that, the change was way too abrupt.
Oh, and the begining, what's with the loud and annoying bussing sound?