Cubism Cubism", (from 1909 to 1914) during which time Juan Gris emerged as an important exponent (after 1911); and finally Cooper referred to "Late Cubism" (from 1914 to 1921) as the last phase of Cubism as a radical avant-garde movement. Douglas Cooper's restrictive use of these terms to distinguish the work of Braque, Picasso, Gris (from 1911) and Léger (to a lesser extent) implied an intentional value judgement. Cubism burgeoned between 1907 and 1911. Pablo Picasso's 1907 painting "Les Demoiselles d'Avignon" has often been considered a proto-Cubist work. Georges Braque's 1908 "Houses at L’Estaque" (and related works) prompted the critic Louis
Georges Braque known as the "Fauves" (Beasts) in 1905, he adopted a Fauvist style. The Fauves, a group that included Henri Matisse and André Derain among others, used brilliant colors to represent emotional response. Braque worked most closely with the artists Raoul Dufy and Othon Friesz, who shared Braque's hometown of Le Havre, to develop a somewhat more subdued Fauvist style. In 1906, Braque traveled with Friesz to L'Estaque, to Antwerp, and home to Le Havre to paint. In May 1907, he successfully exhibited works of the Fauve style in the Salon des Indépendants. The same year, Braque's style began a slow