I love the contrast of white and greys on black paper and this face appearing out of the shadows becomes sinister and appealing at the same time.
Like scratchboard, working light to dark takes a bit of thought as you're letting features form themselves. They become apparent only when you form the light around them, like negative space.
I'd forgotten I started this piece and don't recall the reference for it or when I did it. I think it was done with white charcoal or pastel perhaps. Maybe even coloured pencil. It was unearthed when I did a studio clear out last week. Its amazing what you find when you clean up!