I like the shape she's making with her body, but your lens selection is killing you here. Her legs look too small for her body and her head looks too big. Compositionally, The upper right corner bothers me because of the white elbow and stool/table. My eye is pulled to that corner and won't move off of it. I would suggest trying to compose the shot so that her body moves diagonally from the lower left of the image to the upper right. My eye will then follow that line and end at her face. As it is now, my eye moves from left center to right center, which isn't as interesting. Others have mentioned the clothing issues, so I won't repeat them.
There are technical aspects that are pretty strong. You did a pretty good job of separating your subject from the rest of the image. Also, I really like the warmth of the shot. I think the tones work well here. Overall a good first post.