9x12 oil on canvas
Depicting the color of the light falling on objects in a painting is a great advancement over depicting the local color of each object individually, no matter the object,.  The first impulse in painting is to paint the color of the object.  This results in making up the painting piecemeal, one object at a time.  The human eye and mind are capable of doing this.  In fact it is the common way to see.  To see relatively one must learn to compare colors, groupings of colors, and eventually see the whole scene as a unit.