University Art carries something I never saw before: a canvas mounted on a cardboard. 5″ x 7″ pieces are sold unprotected, unlike canvases and real sturdy canvas boards. They come in white and black versions. Naturally, I had to buy both to see what can be done with them.
This white horse was done on a black one. Even though the canvas accepts many layers of color the result is not purely white (hence the “ghostly” reference). Alas, colored pencils are not completely opaque.