While we are under the Coronavirus stay-at-home order, I have been making small experimental paintings. I began this one by making random marks with gray ink and wax medium on slick Bristol paper. I added the color with gouache and the gouache beaded up on the areas that had been waxed. Some areas in the center have multiple coats of wax and gouache and that is what gives it a marbled look.
When we can paint outside again, this technique may turn out to be useful for showing the textures in materials like night skies, pebbles, boulders, and foliage.