It’s always been a fascinating subject in art, not only for the learning opportunities (e.g. basis for facial structure) but also for its other many connotations (memento mori etc.).
I picked a picture in a cheeky pose, smoking a cigarette, almost toothless, and with a stark contrast created by some light coming from the right side.
See a gif of the progress below. It was honestly a lot of fun!
The final result:
