This is a 3 minute preliminary sketch for a new painting I'm developing, 'The Race'. It is also an experiment using pastels with water.
I drew the white lines in to see how they worked going over a dark area. It didn't work so well where the paper was fully saturated, but was better after a first pass removed some of the water, or where the paper wasn't as wet.
The original black line work on the figures was done dry - just wanted to see how it held up by soaking it in water.