Just a quick study I did a few months back of Lust from Fullmetal Alchemist: Brotherhood.

EDIT: Man, some of these notes are cracking me up. The way people run with ideas and speculation! Yes, many of us on the crew enjoy Fullmetal (especially Joaquim, who has praised its virtues for some time), but Mike and I were late to the party. We didn't start watching it until well after we created Mako and Bolin. And I think I had already designed Asami before then as well, but as Lust is such a killer design, I'm fine with saying she was influenced by her, and flattered anyone would think so. And why would people think we don't like anime? I am amused!