It'd be cool if you could draw Richard Morgan's akyia aka merroigai :) They're one flavor of post-humans, a million years from now.

"He catches fragments of a glimpse -- a circular mouth, dialated wide enough to swallow his head whole, the unbroken ring of a single taut lip rolled back and concentric rings of teeth in the throat beyond. It's the akyia, the thing that Seethlaw and Risgillen called the merroigai. Behind the nightmare head, the hint of a lithe, approximately human body bisecting into long, coiling limbs fronded with fins." [Cold Commands]