Hah, these are really good. I'll nitpick a little saying Amy looks like the living dead, but from me and my piont of view I'm fine with that completely (
) You seem to draw Bender the best and Zoidberg. Just a small mouth problem: his mouth-tentacle thhings cover up his smile so you can only see a small line off to the side indicating his emotions. Nitpicking aside, great job.