Pretty good fight, good animation with the characters. Here are some future tips for the next one.
1. Make sure your background don't break out of shot when camera shaking, (Meaning you don't want to show the edges of the background or front-ground.)
2. Blur out the background when doing fly by, the blur effect will give the impression that the characters are zooming in the air at high speed rate.
3. Modify your effects to screen, that way they don't have a black boarder around them, if your not sure how to do this, change the effect symbol into a movie clip and go to it's properties.
Other than that good job.