I managed to get this model based, so I thought I'd just post a couple of new pics to prove it.
I tried to go for a sort of beach/surf kind of look, though I'm not so convinced it was successful. I may eventually strip off the sand, and try again.
You'll notice that the eyes are rather horrid. I got the blacks in, for the pupils... but I simply couldn't get the whites on properly. I even repeatedly painted white onto the skin, and then had to try and fix it with my limited GW skin tones (and I mean limited... I have Tanned Flesh, and that's it. I never paint faces....) The same actually goes for the black as well, now that I see it so large :S:S Well, I guess eyes are certainly one area where I need a tonne of improvement