The art collection increased and the walls at Rue de Fleurus were rearranged continually to make way for new acquisitions. In "the first half of 1905" the Steins acquired Cézanne's "Portrait of Mme Cézanne" and Delacroix's "Perseus and Andromeda". Shortly after the opening of the Salon d'Automne of 1905 (on October 18, 1905), the Steins acquired Matisse's "Woman with a Hat" and Picasso's "Young Girl with a Flower Basket". In 1906, Picasso completed "Portrait of Gertrude Stein", which remained in her collection until her death.