I really like this one, especially the close crop, the softness, and the detail in the eyes with those nice catchlights. Displaying this as a monochrome is a definite plus.
A very good bit of portraiture as far as pose and lighting, but it appears that you used too short a focal length resulting in a bit of distortion like the lengthening of the profile. A 35mm equivalent of 90 to 105 mm is usually recommended.