Yee haw...

All I can say about this is I hope your teacher gave you a better grade than i did.

just... bad.

It looks OK, but that's the best I can say about it , the lack of sounds, violence, story, anything of interest (in general, anything) really hurts the movies score.
You have some talent, that's for sure, just make sure that your next project has some interesting structure that will appeal to most of the Newgrounds audience.

Ha Ha Bunny

Bunny LOL! That was good, continue to make masterpieces such as this!!!

Shows promise

It looks OK but that's about it - the lack of sounds, violence, story or anything interesting really harms this movie. You have some talent, that's for sure, just make sure that your next project has some interesting structure that will appeal to the Newgrounds audience.

Almost closed it before the end.

Sound is really important, because without sound, animation like that is just not attractive. It makes it seem long and boring. although it was short as hell.
Make a better story for your characters. And add voices. same type of animation. that would work.
Goodluck!