I must say that the beginning sounds good, I would suggest to use other drums though, I think that if you would pick the right drum samples here it would give an awesome sound to this.
For me the beginning sounds good, but I dont really like the noisey sound after 01:15, I would suggest using something else here.
I have to say that the bass you use after 01:50 sounds pretty good.
The ending around 02:35 should have been earlier as here another kind of melody comes in which would be pleasant to the ears if it had continued for a few more blocks.
I can see this being used in some Flashes.