They're already all bloated, veiny, with a slight iridescence to their skin, partway between a deathly fever pallor or newborn amniotic goo. That's pretty fucking disgusting as is. Mostly notably, they have way too many teeth, and their mouths are just slightly too small for how many teeth they have, so their lips are always curled back.

They're designed to fall firmly in the uncanny valley, that I am sure.