Drawing -- Fabric

Our professor prepared a piece of black and white striped fabric, draped and mounted to a board. Our assignment was to draw it in charcoal on white paper with a toned background and in a 10" by 20" format. When I did it in class my toned background ended up so dark that when I tried to lighten it for the white stripes, I could not get it light enough. I had to do the drawing over, from scratch, outside of class, without being able to look at the actual fabric. In spite of that (or perhaps because of it ;^) the final drawing turned out very good. This is my best work for the semester.