Crash course portrait 4th of 4

Spent about 6 hours on this piece today. Can you guess who it is yet?

I altered the very dark shadows (yes, that's what those dark blobs are supposed to be) a little in photoshop. I don't like the nose at all but that's how it looked in the photo, as did the neck and lips. The teacher said it was fine, and I didn't know how else to solve it (except for erase the shadow and invent the nose) and ran out of time.

Still, I have to say I'm pleased with this, it's a fair likeness, there's some expression in the face and eyes.... 2 days well spent for me