Great animation, but the anatomy is off, the torsos were square and fat and stubby, A muscular male torso is usually thinner at the hips and wider at the chest, and for a female torsos the thinnest part is at the middle of the torso (like an hour glass), the torso for normal adults should be proportioned about 2 and a half heads tall, or else they'll look too short, and the most important part, the part that most artist's miss is the spine, it has to have a curve to it from the side, if it doesn't, it makes them look like a cylinder and just unnatural.
But what really made this movie shine was the animation, not even most tv cartoons put that many frames into their fight scenes as you did, the special effects were good the sound timing was in good sync and the shading was awesome! (I have no clue how you did that.)
Overall good movie. Hopefully your next one will be even better!
Don't take this the wrong way I'm just trying to help. Keep at it!