Assassination of John F. Kennedy
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.