I wouldn't rate it since it is your first try. It's good that you put time into this, the syncing shows. Just try to make it look smoother, look up tutorials on a plugin called "Twixtor" it will make it look a LOT smoother. Also try "Real Smart Motion Blur"
Not bad though, keep trying! Let me know when you post another!
Edit: I think this is the wrong section for this kind of thing though.