Man, I know I've said this before, but Houston just throws me off so bad. I keep thinking it's Dallas X_X (It's the pointy building right next to the big, tall building, but as a Texan, I feel like I should know this stuff!)
ANYWAY! This is stunning piece you've got here. I especially love that powerful look in her eye, very catching (and I'll just put this out there, her hair is AWESOME!) The colors are amazing, too!