 Konstantin-Hansen painted her last major work in 1930, "Svaneflok i våge", depicting a group of swans near Kolding Fjord.From 1882, Konstantin-Hansen exhibited her paintings at Charlottenborg where in 1885 she won the Neuhausen Prize for her "Drenge udenfor en Grønthandel" (Boy Outside a Greengrocer's).In 1893, she started instead to exhibit at Den Frie Udstilling where she continued to display her works until 1928.