Repetition is not just a repeating pattern like the stacking of bricks that create a wall. Variation should be added to create interest. Without it, the design would be monotonous. In the first piece by artist Hisashi Okawa, there are several elements that repeat. First, there is a repetition of figures all facing the same direction. Variation is added by creating differences in the hair of each figure. Then there is the pattern, which is a repeating element on the figures' clothing. Each figure has a different repeating pattern, creating variation between the figures themselves.
The use of repeating elements can create different values just like in the first design. This design by Stephanie de Villa, may first appear to be monotonous because the repeating elements are flat black and white lines. However, the lines all have differences in thickness and direction, creating different values.
The third example is a print by Aoki Tetsuo. As shown in the previous designs, repetition of elements can create a pattern. In this piece repetition is used in the design of the figures. They are all elongated. That's the repeating factor. Variety is created by making the figures taller or shorter, the direction the figures are facing, and the clothes they wear. Some of the figures even have bags and then there's the sixth figure who has a hand up.