A few things...
1. I hate DBZ but liked your previous animations. The reason I dont like this one is because it's just a bunch of guys standing around with beams of light pushing against each other. WHAT KIND OF FIGHT IS THAT???? It was VERY boring to watch. If you're going to just remake a DBZ story then choose a good one where there's actual hand to hand fighting.
2. DBZ is utter crap. Don't copy a shitty storyline. Make up your own! You'll get a better reception that way.
3. I've got no problems with your artwork or animations. It's all crisp and fluid. It's just point 1 and 2 that let this animation down.