After 1918 the style of his still lifes becomes more impressionistic, the technique more painterly and using a great deal of impasto, and usually depict roses in Chinese vases from the former collection of J. Pierpont Morgan that he copied at the galleries of Duveen Brothers in New York (Duveen's exhibited the Morgan collection in 1919) and elsewhere, and sometimes including depictions of other works of art like bronze or biscuit porcelain statuettes, Chinese porcelain Buddhas, Italian maiolica plates and so on. It is known he was an admirer of Claude Monet and others, as he told the German Kaiser – who hated the Impressionists – in 1909 that the Impressionists had "done a great deal to awaken modern art."