Her paintings did become more overtly critical over time . '' Countdown to Violence '' depicts a number of harrowing current events , including the Birmingham riot of 1963 , the Assassination of John F. Kennedy and the Vietnam War . '' Cuba Si '' ( 1963 ) references the Cuban revolution . The collage painting '' It 's a Man 's World I '' ( 1964 ) juxtaposes images of patriarchal icons The Beatles , Albert Einstein , Lenin , Muhammad Ali , Marcel Proust and other men . In '' It 's a Man 's World II '' ( 1965 – 66 ) she redisplayed female nudes from fine art and soft-core pornographic sources to signify newly liberated " female eroticism " . Her last known painting , '' BUM '' , was commissioned by Kenneth Tynan for '' Oh , Calcutta ! '' and was completed in 1966
Assassination of John F. Kennedy
Assassination of John F. Kennedy
Pauline Boty