Untitled (blank, left page); Untitled (Halde Rheinpreußen, right page)

Black crayon on paper

Graphite on paper

Graphite on paper

Colored marker on paper

Black and aqua marker on paper

Graphite on paper

Oil on paper

Graphite on paper

Black chalk on faded blue laid paper

Colored marker on paper

Colored marker and black pen on paper

Black marker and pen on paper