I couple of weeks ago I made my first selfportraits with charcoal. Quite loose sketchy style. The first one was without glasses. I left half my face in the dark for some dramatic light effects.
It was hard to see without glasses, in the dark, but somehow I like this better than the other one.
I recommend if you are an artist and haven't tried making your selfportrait from life using a mirror you should do it. Warm up those creative muscles with a 10 mintute selfportrait sketching exercize.
It can be a funny experience, when your portrait comes alive. It doesnt have to look like you, the main purpose is to study drawing portrait from real life while having fun.
My second one with glasses, looks funny with my intense look concentrating on my study of drawing selfportrait.