This a really old effort from me. I bought a set of pastels years ago, thinking that they were the soft kind. Turns out that it was oil pastels. I had a pad with various shades of pastel paper for working on. I blindly did a few pictures. Had no idea what I was doing really! I was studying some Rembrandt work at the time, so I had a go at copying one of his oil paintings. The resulting creation, although the head is too large, ended up looking rather like the original. I didn't have a black crayon in the box, so I used a . . . wait for it . . . An eyebrow pencil.
Funny how things work out.