Break it down. All things are made up of elements, so is design. Design is made up of multiple elements, some designs have more elements than others. Look at a design that you really love. Now identify the elements of that design. What types of lines are being used, what colors, how are the elements organized in the space, what and where is the focal point, what elements support that point to make it the focal point? Identify what you like about a design or what elements a client likes in design to incorporate these key elements of your next creation.
