HI Bomba,
I really like the work you have done here, and it's all working for me - all except the prawn. The head is much larger in proportion than the body. The body section is shorter and thicker, and the tail should fan out a little like a lobster tail rather than looking a bit like little fingers. There are only really about 3-4 "sections" of the body rather than the 7 or so that you have here, but otherwise, I really love this approach.
Cheers
Ben