I thought your name looked familiar...you're the Cyber Fairy guy. I love that pic. This is wonderful too. Things I like: her twisting pose, which echoes the little whirlwind she's conjuring, and makes the pic very dynamic; the almost blank background, which makes it look like she's on a mountaintop or some such desolate place; the red highlights on her hand. Great composition!
Oh, I do like the anatomy, especially the foreshortening... watch out for the perspective though....reading the right arm a little weirdly....(uncanny valley like) VERY Good all around job exceptional considering no reference was used! (Industri, your no. 1 fan xD)