Not bad as you first video.
But you surely need a lot to cope up.
First: Remove that REPLAY text that is flashing.Use Ghostchild's TUT on how to do it.
Second:Practice more different stunts.I saw all of them were Old School ones.
Use Packer,BSMs and Bumps etc. Head over to GTAS and get some TuTs.
Third:Get a nice custom Skin.Bike is not necessary.But still......
That song surely put a smile on my face.