Anatomy study of two heads for portrait of Derek Bok : one showing musculature, one of skull

Gouache with collage on paper

Black ink and colored pencil on off-white wove paper

Watercolor over graphite on off-white wove paper

Watercolor and graphite on off-white wove paper

Graphite on paper

Graphite on paper

Graphite on paper

Charcoal on gray laid paper

Charcoal on modern laid paper

Charcoal and graphite on illustration board

Ink, marker, colored pencil and graphite on Strathmore folded in half

Crayon on paper