It is very well made!
To get more impressing attack and die animations you should exaggerate the movement and deformations quite extremely.

Look for cartoony 2d animations f.i. animated gifs, to get an idea what I mean.

Another hint, relates generally to contributions: add a readme with the credits (forum nickname) in the zip-file, even, if you don't need credit for your work. You can add the small pics of the model, too.