This model gave me no end of problems, so much so that I decided to give up on having IK chains. Plus I've never been able to figure out facials.
If you can improve her by adding those, feel free. I don't care.

Toph Beifong © Bryan Konietzko and Michael Dante DiMartino.
Model from Avatar: The Last Airbender - Into The Inferno.
Rigging by Screampunk Arts.