It's a nicely composed photo but there is a lack of contrast? It seems too washed out. A tighter crop at the bottom and on the right might also return focus on her great expression and beautiful face!
IMO this needs a much tighter crop. The lighting is also not very good, as the image looks very flat and there are shadows on her face while the background id light (what is the main subject here). The model looks tense and unresponsive (the body language with the folded arm and her facial expression). I will have to give this a 4.
I am really astonished by this model. She seems like someone I would meet for tea on thursdays. I think just the look of the model makes an almost instant connection with the viewer. On the tech. side it's a little out of focus and over exposed just a tad. I like your choice of background but the pose has to much going on in the bottom right hand corner. Mabey take off her braclet and see what that does. great shot overall though
She could be an interesting subject. I would like to see better focus and more even lighting on her face. The white of the background doesn't blends in too much with her hair and the two tone background is distracting.
The natural light works really well here but sitting back like this makes the focus on the face lacking contrast. Leaning forward in the exact same position would have worked better..