In this painting the artist uses shading to turn shapes into forms. By shading in parts of the fruits, vases, and bowls, along with adding a shadow behind them, the artist makes the fruits and vases look real, three dimensional. Without shading and shadows, the fruits and vases would look flat and two dimensional. Instead of looking like a sphere, the object would look like a circle. Instead of a cone, the bowl would look more like a triangle. Shading turns 2D things into 3D things.