I tried this project three different ways today, and the third time ended up the charm. First was with a black chalk pastel sky (too dark), then gray (looked good, but chalk supply ran out) then blue and purple pastel, which this student cleverly mixed.
1. Students traced a CD on a 9" x 12" sheet of paper. The background of the “moon” was colored with blue or purple chalk pastel by shading and then blending with fingers.
2. Black tempera cake pastel worked well for the trees. With generous brushing with water, the color was opaque and flowed from the brush. Students were encouraged to make a thick trunk, the lots of branches that gradually ended with pointy tips.