Sketch of an Orangutan

Black ink on cream laid paper

Graphite and colored pencil on paper

Graphite on cream wove paper

Colored marker on paper

Black and white chalks on heavy tan wove paper

Graphite and gold crayon on paper

Graphite on off-white wove paper

Charcoal on paper mounted on masonite in artist's box

Graphite, oil pastel, clear and colored wax crayons, and watercolor on white wove paper with multiple impressions

Watercolor, charcoal and graphite on white wove paper

Watercolor over graphite on cream wove paper

Black and white chalk on blue-gray wove paper