well....
I dont understand it... Its not funny at all.....
The lines were very monologue-like... with punchlines I FEEL like they are punchlines but do not make me laugh... and makes the joke looked extremely forced.... what happened to the script? Its just some more swearing and speaking really loud and fast wich I dont even know what is funny about.
It looks like you were trying to make the "funny voice acting" the source of the lols in the movie, still, the voices are not funny because they simply dont sound realistic enough. even for a cartoon, they simply dont reflect any emotion, irony or funnny atmosphere, it looks like the voice actors tried too hard to make the voice funny..,, wich is something you dont want the expectators to notice about.
The voice acting, like I just said, was really loud sometimes, really fast most of the time with references to the same cartoon and some overused jokes worthy of the old episodes of the simpsons.
As for the animation, I could start by saying something, frame by frame animation can be extremely lazy and overrated, just like in this case. when the chatracters have no constant proportion or light source it is pretty damn easy to make 3 frames of fbf movement and you got a completelly new position made in a couple of frames.
Also, and this Is somehting I am gonna be a bit criticall about....The lipsinch is NOT a butterfly flying over the character´s face like it looks here. altogh precise, it looks too damn loose. If you see yourself in the mirror you will notice you have a chin and that it moves DOWN AND UP when you speak too.
the characters walking looked simply horrible.... you should try harder to make the angles look good considering you have so much space to work in.