No. 13 white on black

So the exercise was to explore mark making on a black background with white crayon/pencil

Here's a first try at a head with a crayon - definitely not so easy, I do recall many years ago doing something similar with 'scraping' on a black surface.

A head in there somewhere 

So then white watercolour paint trying to represent  a (simple) tree and perhaps a couple of bushes.

A tree in the dark

I've found this fun and will try further experiments  if I can get more white crayons and marker pens.