Looks like concrete has taken over the sand :D
More like concrete that hasn't dried up yet XD
I actually brought that up to my BG artist stating that it looks too dark, but it turned out that it just hasn't been rendered yet ^^;
Hehe :) I found the whole screenshot pretty funny, maybe it could be used for a kind of joke?
Yeah maybe like in a joke project for April fools (dang it I'm too late for that, ahaha) or whatever, or maybe for NaNoRenO ^.^