acceleration critique

i know the quality sucks and the camerman is very stupid indeed, could you point out any mistakes in my acceleration mechanics?

the first one is about 30m acceleration till the guy with the red pants.

http://s51.yousendit.com/d.aspx?id=2QTB92P0HQF3333FIJKQJRZJMB

another me and the guy with the red pants competing :stuck_out_tongue:

http://s51.yousendit.com/d.aspx?id=0XNFT90ATXRT51GG80D3R8DI4T

and another one

http://s52.yousendit.com/d.aspx?id=39CT23AWXD0PC3FXFFPQUYREGD