I love how much detail you put into this. The shading is fantastic, the swirling smoke doesn't overwhelm the image, the background fits, and there is so much detail! I love images with detail! The shading for the light sources is spot on.
What I don't like about this image, which is more of a personal pet peeve, it that you outlined the breasts with the cloak. Unless that thing is form fitting, cloaks don't rest like that. Now, if you had it just fir snugly, where it would make a 'tent' with the breasts, that would have been fine. But to have the cloak form fit all the way around them? That's a no-no for me.