I love the transition between the left pose and glasses to the middle, it shows contrast, almost like it was two different ppl. The pose on the right doesn't show that same level of change. I'm not sure what I would suggest, but maybe something along the lines of trying to portray different sides the personality. Right now I see "Intellectual" "Sensual" "Sensual" try "Intellectual" "Sensual" "Bashful" or something like that.
I like that it's in black and white. Skin tones exposed just right. The white t-shirt in the left-hand photo is a little bit over-exposed, making it hard to see the edge between it and the background. Maybe a non-white t-shirt would have worked better, e.g. a light cream or light pink one?
The shadows on the background are too heavy. Maybe if you'd stood a little further forward, away from the backdrop, the shadows would be less intense, still there to give depth but not distracting from the main feature which of course is you!
Not that I'm a portrait photographer, mind you. Those are just my thoughts about how the image could be made even more stunning, based on comparing to other photographs I have seen.