Shadow and Light

We define shape by the shadows and the lights. Is it round or square, is it tall or short? Our eye will Explain that to us because of the "color" and light.

Shadows can not be without the light. Then we define distance by the warm and cool. The closer something is the darker and warmer it is, the farther away it is its cooler and lighter.

Highlights and low lights are a whole different thing. But by putting the subject next to the lightest light it deepens the darkest dark.

Ah child keep your brushes wet!