Main problem...
...with this movie is the overall timing. the whole shebang is simply way too slow. speeding the movie up maybe 20-50% or whatever would probably make it better for starters, but then some things would have to be re-animated, to make it look good and whatnot.
the whole cartoonish "fun" style works pretty ok along with the simple sfx/soundscape+music, but that's about it... and in all honesty, the sound is ok, nothing more.
either way, some effort is obv. put into it, but i can't say i think it was funny, or that well performed overall. sorry :(