Pretty well animated. The movements are fluid and snappy, and the sound effects make the hits feel like they have some real impact to them. I will say that Sonic recolors are a common thing, but that's not something I'm going to take points off for. You even managed to avoid DBZ fight choreography and sound effects, to boot. Not bad. Not bad at all.
It's only 30 seconds long though, and that makes it hard to really critique anything, since the fight is over and done with so fast. If you do release a longer version of the fight, I can give you a more in-depth criticism of it. But, I like what I'm seeing so far.