Norway's newly found independence from Denmark encouraged painters to develop their Norwegian identity, especially with landscape painting by artists such as Kitty Kielland, a female painter who studied under Hans Gude, and Harriet Backer, another pioneer among female artists, influenced by impressionism. Frits Thaulow, an impressionist, was influenced by the art scene in Paris as was Christian Krohg, a realist painter, famous for his paintings of prostitutes.