Principles of Design: Repetition with Variation
Repetition means to repeat one or more of the five elements of design.
Variation means to change one or more of the five elements of design.
Repetition within a composition helps creates unity, and therefore, order.
Variation within a composition helps create interest and dominance.
Ways to establish Unity with Repetition
Repetition of rectangular shapes is used to create unity. Variation of their sizes and values is used to create interest.