Hi GraphitLive, looks like you've put a lot of work into these, and thanks so much for your effort. The prawn looks OK, and the general feel is good. I would probably prefer the type to be all in one colour, just to take a little bit of complexity out of the whole thing. If it becomes the final logo, or the winner, I will have to double check a little bit of the anatomy of the prawn - at the moment the only thing about him I would change is to make the eye black.
Thanks
Ben