Huh, so that's Dragonball Z. I always thought it was a show about people trying to give each other paper cuts using playing cards.

It's basically a lot of effects shots, with little animation. What there is could use a bit more easing in/out, but you did a good job of composting everything together.  Thing is, overuse and reliance on effects hurts the over all quality of the short. That being said, it was a trailer, so it's not supposed to have too much cohesiveness.