I really like where this piece is going. There's some good line quality here, some of the best I've seen today in fact. You've got a great opportunity for some awesome lighting color. There's an issue though with the stomach. The line going from her ribs down on the right side seems weird to me and I'm not sure it would be there.
Also, usually central compositions make an image seem static and duller but with all the fire around being so interesting it helps that problem. I really can't wait to see the finished version