This image, based on a white roofscape seen against a dark sky, plays with the  complexity of the fall of light on the structure which is made up of flowing curved shapes and  sharp, crisply defined blocks. The shapes created by the cast shadows are every bit as  important to the composition of the picture as the shapes found in the building itself. All the  edges are crisp and sharp, but there are gradations in the shadows which add to the  monumental quality of the image.