It was good..
It was very good actually, but a few things that really caught my attention,
First of all, all the people complaining about the voices. The persons in the video talking give a complete new dimension to a video then just using text. If you are too lazy to edit the voice tracks, or just not good enough at it, collaborate with someone and make him do the vocal tracks, soundtracks, etc.
Their hands are just WAY to big sometimes, make them smaller XD
A lot of animations are very smooth and worked out really well, but sometimes ended kinda "lame". If they are fighting like that ultra fast, and finally finish with a fatal punch or something, you'd expect it to be epic. But most of the time, it wasn't really XD
Still I can't wait for part II. Good luck animating!!