Untitled (notes, left page); Untitled (sketch for Kunstmuseum Celle, right page)

Colored marker and black ink on paper

Colored marker and opaque watercolor on paper

Black marker on paper

Blue and black marker on paper

Blue and black marker on paper

Red and black marker on paper

Colored marker on paper

Colored marker and blue ink on paper

Colored marker on paper

Ink on postcard

Colored marker, black ink, and opaque watercolor on paper

Colored marker and blue ink on paper