This undated handout image provided by the Smithsonian National Portrait Gallery shows a portrait of Marilyn Monroe by Willem de Kooning, part of an exhibit at the museum in Washington: “Face Value: Portraiture in the Age of Abstraction.” The new exhibit explores how Andy Warhol, Robert Rauschenberg, Elaine de Kooning and other artists pushed the boundaries of portraiture in the mid-20th century. (AP Photo/Smithsonian’s National Portrait Gallery)