Very nice composition. Eye, nose are nearly right in the middle, which usually doesn't work, but you have broken the rule to your benefit...having the figure off to the left, with the face next to the vanishing point line, works fine here. I do long to see a bit more detail in the shadowed area, which you might do by lowering the intensity of the backlight.
Thanks for the good advice, photography is a rekindled hobby from my school days, with this shot I wanted 1/3 rule for the vanishing point. Suggestions and advice on composition and technical matters are gratefully received.