I usually imagine a hip hop dancer in a more urban setting: the weedy growth just doesn't seem to fit with the rest of the image for me. Also gives the strange impression that she's floating. The metallic background is hard to define as well. Lighting seems a tad harsh too.
Interesting, sassy and attractive subject. I really like the the reds your subect is wearing against the black & white striped background. It appears, though, that the image is underexposed on my monitor, anyway, causing the reds to be subdued. Would like to see more pop in this photo. Also, I find the foliage she's standing on to be unattractive and doesn't fit with the rest of the image. Despite these flaws, thie composition is good and I can see this picture being used in some advertising circular. 8
Cool shot! Everything's great except that the lines in the background don't quite fit the border and it's really obvious because of the way they almost parallel the border of the image. Still, my pick for the top 5.