Man, that's really cool! I already said it, but I love your concepts and the overall aesthetic of your work. That somewhat angular style you have is very nice.
With that said there's one small thing that bothers me slightly on this piece and it's the angle on the left between her torso and hip. It may be because it's hidden by the smoke, but it looks a bit too extreme (at least for me, you may think otherwise ) But yeah. beyond that nitpick, that's really an awesome character !