If you've played a lot of video games or watched a lot of animation, you've PROBABLY heard her voice. In any case, I nerded the hell out when I saw her, and went home and made her a really quick piece of fan art. She was quite nice and I was glad to meet her.
The characters are Jun the bounty hunter from the Avatar cartoon, female Shepard from Mass Effect, and Jennifer Mui from the Mercenaries series.