Her subjects were primarily still lifes and landscapes from her travels. She closed her Rochester studio in 1886 and traveled to Paris. In 1887 she exhibited "Hillside at Picardy" at the Paris Salon. For her painting "Breadwinner," Cooper was given an award at the Chicago's World's Fair in 1893 and the Cotton States and International Exposition in Atlanta in 1895. Cooper was awarded a gold medal at the 1902 American Art Society exhibition in Philadelphia. She exhibited oil and watercolor paintings at the St. Louis World's Fair of 1904 and won a bronze medal for a "Weaving Homespun" and another bronze medal. Her works were exhibited at the Paris Exposition of 1900. Cooper's paintings were exhibited with her husband' in shows in Rochester, Chicago, New York and Philadelphia, and Buffalo between 1902 and 1910. In 1915 she showed paintings of India alongside works by Alice Schille, Adelaide Deming and Helen Watson Phelps in New York.