its called the 8 head rule. from the top of the head to the bottom of the floor, is 8 heads. Goes, Top of Head, Bottom of Chin, Nipple, Naval, Crotch, Finger Tips (assuming its just standing there.), Bottom of Knee Cap, Under the Calf, Floor. It works for me every time now or at least helps. make sense?
and really, her actual fingers suck compared to the claws. but what about Yume from YA? give her some fake claws.