Metallic ink studies on paper
Penumbra is a series of metallic ink paintings on black watercolor paper. Art Deco motifs and ginkgo leaves are painted in fine lines of copper, bronze, gold, and silver.
Penumbra is defined as:
the partially shaded outer region of the shadow cast by an opaque object.
ASTRONOMY
the shadow cast by the earth or moon over an area experiencing a partial eclipse.
ASTRONOMY
the less dark outer part of a sunspot, surrounding the dark core.