See how pulling
her arm back made that crease coming up from her arm pit? That's a natural
crease caused by the warm clay pushing on itself. The crease under
her left butt cheek was made by pulling her leg back, the clay presses
against clay and the mounds for muscles just make themselves. This
is such an under utilized aspect of the elastic quality of polymer clay. If
we bent that left knee back more there'll be a crease where the top of her
calf muscle presses against the lower part of the thigh. It'll happen
automatically.