Sepia Portrait

This is a portrait i did in my class of "nude sketching" (i dunno if it is the right word).
The model wasn't exactly "motionless", always moving his head from a side to another, singing (sometimes), smiling, then getting weird, speaking to his oneself...nobody likes him in my class...So It was really hard to paint his portrait, but I think it went quite well.

So here it is...