Valentino, I always like to see how artists describe themselves, and this is no exception. The sideways glance toward the light (and the equally sideways glance
of the light) gives it an enigmatic expression. It looks like you've stopped to ponder a big question. Maybe it's just a mood, maybe it's more of a personality trait. You have done such a good job with the planes of the face and the value changes. Seeing that shadow against the pure white background is startling. I think it increases the effect I described above.
By the way I like your haircut!