Good, but has its flaws.
Overall this showed some real talent, but lacked heart (I wish there were a less corny way for me to say that, but I don't know of any).
I think you'll get a lot of criticism for a lack of dialouge, but it's not the lack of dialouge that's at fault, but the way it's implemented. IF your characters can't talk, they have to convey their feeling some other way. Their faces and movements weren't animated enough to flesh out them out.
Also, do to the setting, I had trouble seeing the characters (especially the polar bear). White on white didn't really rock my world.
I don't get the crab. What was his purpose?
Thanks for a quality submission.