The most successful chimpanzee artist is Congo (1954–1964). Morris offered him a pencil and paper at two years of age, and by the age of four, Congo had made 400 drawings and paintings. His style has been described as "lyrical abstract impressionism". Media reaction to Congo's painting abilities were mixed, although relatively positive and accepted with interest. Pablo Picasso was reportedly a "fan" of his paintings, and hung one in his studio after receiving it as a gift. In 2005 Congo's paintings were included in an auction at Bonhams alongside works by Renoir and Warhol. They sold for more than expected, while Renoir's and Warhol's did not sell. American collector Howard Hong purchased three of Congo's works for over US$25,000.