I for one think the animation style and artwork are very well done. Thats kind of where it ended for me though.
The opening scene was actually pretty good. It could have almost ended there and I would have enjoyed the submission more.
The voices were good all around except for the boys. It sounded really out of place and forced compared to the quality of the other voices.
The plot perhaps was a decent idea, but wasn't executed well. The jokes fell flat, the pace of the submission was dreadfully slow. Some of the conversation between the siblings felt forced and out of place.
So overall, decent idea, very good animation and artwork. You can tell a ton of work went into that. I just thought that the execution, jojes, and story werent very good.