Blue ball point pen diagrams on yellow lined paper

Watercolor and white gouache over graphite on cream laid paper

Oil on cream laid paper

Pastel on beige wove paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove tracing paper

Charcoal on heavy green wove paper

Black ink on off-white card

Watercolor on off-white wove paper

Gouache over graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Colored pencil on off-white card

Graphite and colored pencil on paper