This picture is extremely beautiful. There are many elements of it that create a whole shot, not just focusing on one element that is outstanding.
The beauty of the model is either the first or the last thing, so I'll make her first - wow! She knows how to give a stare. It's obvious she knows how to follow direction, which gives her a sense of confidence, while also hinting at a vibe of defiance and wit in her eyes and lips as well.
The overall positioning of the model and the camera angle is superb, unique and creative. Her hair near the bottom of the picture frames the rest of her very well, and the 'birds-eye' view puts a special orientation on this shot that emphasizes the model's beauty.
The focus of the shot is well done as well, playing on all of her features perfectly while giving a bit of the background some love. The background tells us were she is, and her face gives us an idea of what she's doing there.
Overall I'm stunned by this photo - it's one of your best I believe, and I hope we'll see more of these soon.