Thanks for the comments guys, appreciated.

I think that crab is looking really good myself- I like the edge of the shell and the claw bump in particular. I find the UV thing really quite hard myself but it gets better each time.

I don't know if you need another texture as that one looks fine, but you could try just unwrapping one bit for the practice, after all there's a day left yet! Perhaps just the top of the shell? Go on, you know you want to!