RE-PIN De Stijl: Composition A (1920) Artist: Piet Mondrian. This movement is about using one visual style to represent life in all aspects. Taking form geometric forms, artists using lines, squares and rectangles to express harmony. Painting with the primary colours and shades with exact precision. This pin follows exactly what the movements about, exact lines that create a piece. The squares and rectangle compose an image, art reduced in its simplest forms to convey their abstract message.