As a general rule, the best drawings are always done on the cheapest paper. The cheap paper does not intimidate. We're not afraid to "spoil" it. How easy it is to draw on copy paper or chipboard. Here are some examples.
I am beginning to get closer to a good likeness of Cassandra. Here she is on copy paper. I used charcoal, charcoal pencil, and watercolor pencil (which I did not wet).
Here a portrait of Drea, done in 10 minutes. Charcoal and charcoal pencil on copy paper.
A 30 minute drawing of Brianne, charcoal and charcoal pencil on copy paper.
And, my favorite model, Senalka. Charcoal and pastel on chipboard.