Your animation ruined the music
I think I've said it all. Your animation is too slow and doesn't go with the music. The music totally lost its effect. Slow movements against fast music just DOESN'T work. It looks like (and it may have well been) you just made an animation and slapped the music on top. You should of changed bits and pieces of the music in order to make it fit into your animation. Mind you, graphic was great as it looks exactly like the Simpsons but, like someone said before, one pose and one expression made it a little boring.
Btw, where's Marge?
Good effort though. But I think the Simpsons intro is unreplaceable, simply because the music and the animation is united as one and works well as it is.