We just saw that you can use color as a strong compositional tool. One of the most effective uses of color is to combine two complementary colors that make the eye move back and forth across the image (Figure 9.9). There is no exact combination that will work best, but consider using dark and light colors, or red and green or blue and yellow, to provide the strongest visual. Studying a color wheel or color theory can help you to strengthen your color images.
You can also introduce contrast through different geometric shapes that battle (in a good way) for the attention of the viewer. You can combine circles and triangles, ovals and rectangles, curvy and straight, hard and soft, dark and light, and so many more (Figure 9.10). You aren’t limited to just one contrasting element either. Combining more than one element of contrast will add even more interest. Look for these contrasting combinations whenever you are out shooting, and then use them to shake up your compositions.