In terms of detail, angle and perspective, this is an excellent piece. It displays the model, and her clothing well. It doesn't leave out much detail to her skin, her eyes, what she's wearing. The way the picture, in general, is displayed is good enough to capture attention.
The model's emotion, or how she displays bittersweet can be seen in her expression, or rather, her face structure. (I couldn't find another word to replace 'structure'.) Her eyes have a stare which make you focus more on her.
The plain background helps me to focus on the main object of attraction.
I'd say you were good for fashion photography, and modeling.