Beautiful shot. Love the beautiful stare and wind blown hair. The catch light looks like it was lit from the lower left, which is not something I would have thought to try. Nicely done.
This is how I view portraits. First, the model has to look like they are posed naturally. Then I look for an honest face - you can tell when a model is being forced into expression and when that expression is natural and easy to produce for the model. After that, it's the incidentals - how is the face related to body pose, is it relaxed or forced, etc. Then on to the photo technicals like exposure, saturation, composition, etc. In this instance, it's simply perfect in all the categories - I can't say it any differently. Well done.