20th-century Western painting painted women, reminiscent of African tribal masks and his own new proto-Cubist inventions. Analytic cubism, exemplified by "Violin and Candlestick, Paris", was jointly developed by Pablo Picasso and Georges Braque from about 1908 through 1912. Analytic cubism was followed by Synthetic cubism, characterized by the introduction of different textures, surfaces, collage elements, papier collé and a large variety of merged subject matter. Crystal Cubism was a distilled form of Cubism consistent with a shift between 1915 and 1916 towards a strong emphasis on flat surface activity and large overlapping geometric planes, practised by Braque, Picasso, Jean Metzinger, Albert Gleizes, Juan
Georges Braque throughout Paris and then Europe. The two artists' productive collaboration continued and they worked closely together until the beginning of World War I in 1914, when Braque enlisted with the French Army. In May 1915, Braque received a severe head injury in battle at Carency and suffered temporary blindness. He was trepanned, and required a long period of recuperation. Braque resumed painting in late 1916. Working alone, he began to moderate the harsh abstraction of cubism. He developed a more personal style characterized by brilliant color, textured surfaces, and—after his relocation to the Normandy seacoast—the reappearance of the human figure.