Looks stunning
A very nice animation. Smooth and awesome drawing. Sometimes the animation looked a bit crippled because of the combination of frame by frame and tweening that YungJazz already mentioned, but the detail of the backgrounds and the muscular structure of the characters is really well done, which would of course make it a real lot of work to make everything frame by frame.
What I couldn't really relate to were the voices. Using animal taunts instead of human voices while subtitling it with English removed the binding of the watcher with the characters. I believe that if you'd dub this with voices that would speak English and which would be manipulated so that they would fit the characters, it would create a stronger connection with the one watching the movie.