Untitled (design for flower inflatable with bleed-through of previous page, left page); Untitled ("Enzian" flower designs, right page)

Colored marker on paper

Colored marker and black pen on paper

Black, blue and pink crayon ; colored crayons on paper

Black marker on paper

Paper

Graphite on paper

Black ink on translucent vellum paper

Graphite on paper

Black crayon on paper

Plant material on paper

Colored marker on paper

Black crayon on gray modern laid paper