White on Black

Not the first time I say to myself I won't draw on black paper. And then I come back, trying again to master this complicated method.
Usually, one draws on a lighter background, pushing the shadows with a darker pencil. Here is the complete opposite, you come from dark and bring out the body into the light. You must think in "negative" and even so, the gradation of tone is not easy to modulate.

His White Owl

Dances with the Fireflies