4 Break up your shapes into small , medium and large
Avoid flat, straight edges wherever possible (the first pillar), and split up your shapes into a balanced hierarchy of small, medium and large. If all of your decorative elements are the same size, your designs will look too busy (the middle pillar), and will lack a focal point. If you’ve got a pile of rocks, mix their sizes! If they’re all the same, it becomes boring to look at. In addition, try to avoid too much symmetry in your designs. There are exceptions to this, such as futuristic designs, but I’d still try to interrupt plain edges with a break of some kind.