This is a beautiful photo and really shows emotion, even in the black and white.
I love her position and the way her hair is not exactly in place. Her outfit is a striking contrast against her seemingly white hair. The placement of her body is excellent in the sense that she seems balanced and ready to pounce. Her whole body stands out against the grey of the wall and ground, which is perfect for a black and white photo.
However, I think her face looks a little more on the disgusted side than the angry or enraged side. While her body sits well, her right hand (from the viewers perspective) is slightly wonky looking and blends into the concrete beneath her.
Other than that, I really don't have any complaints. I would suggest maybe trying a bit of dark eyeliner, make her eyes look darker. I'm not exactly sure how well it would work or if you've tried it before. Black fingerless gloves may keep her hands from blending as well.
Overall, this is an excellent piece and I know that I would pay to this in a gallery. Good job!