Charcoal and Pencil
The yellow glow is from the lighting
I miss power failures. In India, as I pored over books during my school days I would heave a sigh of relief when the electric supply failed. It would be time for the Lemon shaped chimney lamp to come out of the cupboard. I would have fun with shadow play and would feed bits of paper (torn off the edges of textbooks) into the flame to amuse myself!