In general, I would give this an A. The blurred portion to the right, however, whether intended or not, does seem to distract and take away from the overall composition. The eye continues to be drawn to the right (and to it) rather than on the subject as a whole or details of the model. If it were a full length shot, or even pulled back a little to give the impression of a curtain, etc, that would have worked better.
Otherwise, the model is gorgeous, the lighting superb, And the loose strands of hair highlight the imperfection of a transition, leading back to "turning" in the images title. (and any worked named after a Vapors song can't be all that bad)
I like this, the eye light looks natural and draws attention to her lovely hazel/green eyes. The pink-green-white colour motif is consistent and very beautiful. The use of foreground-middleground and background add depth to your frame and really bring the space alive. I like the use of the telephoto lens, the shallow depth of field really helps.
I feel that the eyes are a touch too high in the frame and a slight crop that would bring the eyes to the top third rather than top quarter might make this a better frame (only slightly). A bit of texture in the background might make the frame more interesting.