Damn, that's a cool find D! It would be awesome to see them do a comic or animate an episode in that style.
Maggie, Bart, and Smithers looks weird. But it's really well done. The Futurama one is pretty cool too.
http://www.deviantart.com/deviation/46124117/ The artist made Amy look hotter and made Zap look like more of a douche. Also enjoyed the finger-longer.
Nitpick? What do you mean? Well, maybe Apu should be a little darker. And just where the hell is Carl? That picture is RACIST!