It's Juri Han from Street Fighter IV! One of my personal favorite characters to play with, she is the craziest of the characters, IMO. Although she is from Korea and most, if not all, her moves are kicks; she doesn't really look like she is using Taekwondo. It is the listed way that she fights, but just look at her moves!
The cosplayer is Laura Jew, and she did a wonderful job. Not only was the costume spot on, but she was great at all the various poses that I made her do. There was a lot of kicking, jumping, and crazy leaning. Special thanks to her for really going all out, and being such a good sport. I hope you enjoy them, as much as I had taking them!