All flash, no substance
First off, that movie looked really, really good. A very easy movie to look at. However, looks aren't everything.
You have a huge problem with your fight sequences. They don't really have the look of amazing strength that these fighters are supposed to be exhibiting. I mean, that punching bag at the beginning looked like it wasn't even getting touched. Also the first fight sequence lacked a lot of power with little circles representing powerful blasts. The buildings falling had a nice touch, but it wasn't enough. There's also the problem of sound effects and the lack thereof. The absence of sound could have contributed heavily to my feeling that these guys weren't that powerful.
I think major work needs to be done here before I can consider this good, but at least you've got the hard part down in the graphics.