Which of the below artists was not a representative of the art movement of Cubism?

Cubism is an early-20th-century 'avant-garde' art movement that revolutionized European painting and sculpture, and inspired related movements in music, literature and architecture. Cubism has been considered the most influential art movement of the 20th century. The main characteristics of Cubism were the rejection of the single viewpoint in favor of showing the fragmented subject from several different points of view, combined with the simplification of forms.

Pablo Picasso(1881-1973) was a Spanish painter, sculptor, printmaker, ceramicist and theatre designer who spent most of his adult life in France. Regarded as one of the most influential artists of the 20th century, he is known for co-founding the Cubist movement.

Albert Gleizes (1881-1953) was a French artist, theoretician, philosopher, a self-proclaimed founder of Cubism and an influence on the School of Paris. Albert Gleizes and Jean Metzinger wrote the first major treatise on Cubism, "Du 'Cubisme'" in 1912.

József Csáky (1888-1971) was a Hungarian 'avant-garde' artist, sculptor, and graphic artist, best known for his early participation as a sculptor in the Cubist movement.

Joseph Mallord William Turner (1775-1851), known contemporarily as William Turner, was an English Romantic painter, printmaker and watercolourist. He is known for his expressive colourisations, imaginative landscapes and turbulent, often violent marine paintings.