This is an interesting photo and I like it quite a bit. My one slight problem I have with it, though, is the fact that I don't see a lot of contempt in the girl's expression. Maybe it would if I knew her expressions. To me it simply looks like she is looking off intently at something. As a photo, in general, this is actually one of the elements that I enjoy about this photo. The other elements that I think are well done are the tight cropping, the simple blurred background, and the natural complimentary colors. These elements create an engaging photo by eliminating everything that isn't necessary. I enjoy portraits the most where the subject is looking away at something. This puts the emphasis squarely on the person and doesn't imply that there is someone with a camera nearby.
The overall lighting is very effective and I like the shadows cast by the girl's eyelashes. However, I find the shadow from her nose a little distracting and maybe some very subtle fill flash would have helped in that area.
Technically everything appears perfect with nice colors and appropriate sharpness. I see no evidence of jpeg artifacts and there is a pleasant smoothness to the girls skin and features. I am normally not in favor of a square format but I find it effective in this case.
Good shot, good work. Yes, I'd of changed the composition a bit, but I do like this just the same. Super focus, light. Yikes that look!!!!!
Good Luck to ya!