Charcoal and graphite. I drew this while standing in the woods for over an hour. The light kept changing as the sun was going down. Fortunately, I was able to capture some dramatic shadows!
(Left) Charcoal drawing from photo ref. (Right) Copy of 'Self-Portrait as a Tahitian' in Sakura Gelly Roll pens on red paper. More about her https://en.wikipedia.org/wiki/Amrita_Sher-Gil