Unicorn Scene from Fresco Frieze, Apartments of Paul III, Castel Sant'Angelo, Rome

Black and colored crayon on paper

Charcoal on off-white laid paper

Sketchbook with black-leather-covered cardboard covers

Graphite and white gouache on tan wove paper

Crayon on paper

Pastel on cardboard

Black ink, charcoal, watercolor pencil, and metallic gold pencil on cream wove paper

Charcoal on thick beige wove paper

Black crayon on paper

Watercolor over graphite on off-white wove paper

Black crayon on paper

Black ink over graphite on off-white illustration board