The cup is observed from every possible angle, top, bottom, and sides represented simultaneously." In his later still lifes, Pettoruti focused on light, incorporating it as a "concrete element of the picture," not simply including it for illumination of the scene.
Pettoruti’s focus on light in his later still lifes extended beyond mere illumination; he treated it as a "concrete element of the picture," not merely an accessory to highlight the scene, and observed the cup from multiple angles.