I'm so happy to have finished this, I've been working on it since *thinks back* what, two months? In little pieces anyway! As usual, I see loads of tiny mistakes, but at this stage I think it's more trouble to change them than to leave it at status quo. I'm satisfied, because it's my first Snape solo, and it looks good enough for me!
Because of the recent hype about photo-reference - yes, I did use a picture of Adrien Brody at the beginning to get the angle (and the size of the nose) right, but the rest is mine! XD