What a wonderful spontaneous piece! The woman's expression seems to draw you in. Her hair is beautifully dropped and she isnt looking into the camera which gives it that extra mystery.
The textures of the materials, both her skirt and the top piece really pop out in the image, giving it a sense of comfort and protection. I enjoy how the lighting focuses around the model, as if framing her and giving her a glow. The contrast is fantastic, it allows the audience to make a connection between the tones of the skin, the slight aurora around her and the spots on her skirt.

It is quite intriguing to see that tiny little bit of arm there on the right. It seems to balance the image, with the only other skin tones towards the top of the image, then the whites down the bottom. Which are very subtle. The black material around the mouth follows nicely down to frame in the arms and gives the image shapes and shadows.