This is a very cool picture. There is one thing that bugs me though. The head seems out of place for some reason. It could be the coloring. I think the chroma is too high. If you were to make it mid to low chroma, I think it would fit the rest of the picture better. As for the position of the head, it should be a little higher. Her torso isn't leaning forward, so her head should be pulled up a little bit.
I'm not too certain of the figure critique, but I do know that the coloring doesn't quite match up as the background is mid chroma, the foreground is mid to low chroma, her legs and most of the torso is mid chroma and only the face has high chroma colors. This may be intentional but I think it makes the face stand out a little too much. Perhaps that blush on the her right cheek should be toned down a little.
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