Nature creates each leaf in a tree slightly different. These differences are often small and difficult to see, but they do exist in the real world. Every leaf on a tree is a slightly different size, shape or color. These differences do not detract from the tree and they create an overall pattern. Snowflakes are another natural pattern made up of very different elements. Each snowflake is six-sided, but each one has its own form within this natural constriction. When snowflakes fall, people notice the beauty of the pattern formed by many unique flakes that are all created differently. Artists have used these types of natural elements to create their own patterns in works of art.