Scale is similar to proportion, but is measured against a standard reference. Exaggeration and distortion can accomplish expressive qualities in art. Variety Contrast and variety are important in art. If things are too much the same in a work of art it can become boring. Just as we may become bored if we see the same thing day after day in our lives, a work of art composed of the same colors and shapes becomes monotonous.
Variety is the principle of art dealing with differences.
Emphasis Focusing attention on one area of an artwork makes it dominant. Think of emphasis as a focal point that draws the eye to a spot first and then the rest of the object is viewed. It controls the sequence that we look at an art object. Another method of using emphasis is when a dominant element is so strong that the rest of the elements are subordinate. For instance, if a painting is saturated in the color blue, it affects the viewing of the painting as a whole.