Here's my WIP for this weeks CHOW. One of the the things my last picture lacked was a clear focus, so I'm trying to get that there. Basically that means putting the characters head against a contrasting background. Seems to work alright.
Another thing with designing is to scatter different elements around, so the whole thing is coherent. I'm trying to do that with having the leather pieces, muscle tissue, bubbles and mechanical parts all appearing all around the design. I think it's the same with color coherence in a painting. They say a color should always appear elsewhere in the painting, to bind it to the whole.