This is a wonderful example of perfection through imperfection. The model's spectacular green eyes are, amazingly, delegated to the top of the photo and cut off. Her beautiful auburn cascading hair is not only cropped but subject to bokeh. The only nod to modelling convention is the background, which emphasizes the eyes, lest you miss them (yeah, right).
What's left is the vast expanse of her face. Nice skin, but no obvious makeup give it a somewhat raw, vulnerable look. That leaves the 800-lb. gorilla on the living room sofa: her phenomenal, soft, sensuous lips. Of course, they're not modelled up, but dry, cracked. But these are lips of which dreams are made, songs written, goddesses evoked.
I applaud all of the decisions made in this photo. They add up to an extremely expressive, vulnerable, personable photo which is still 100% professional. Caroline, I applaud your effort