As a small-scale greetings card business, you need to develop a style that stays consistent across your product line. This will help people recognize your work. For example, there might be a certain color or a specific motif that appears in every card. Taliah Lempert, an artist who sells her work online and at an artist's market in Brooklyn, has built an entire business around pictures of bicycles. If you draw really cute dolphins, consider developing a line of dolphin greetings cards for every occasion. Customer are always drawn to cute drawings of animals. Other successful image options are flowers, party items like cakes, and landscapes. Or, develop a more unique line of greetings cards with interesting textures and themes like industrial or exotic.
Image credit: luckybeepress/etsy.com

click to enlarge