A powerful image is one that looks real. Remember, you are trying to evoke an emotion — a genuine feeling in the viewer that connects them to the photograph. You want your viewer to mentally put themselves in the photograph, or at least, feel like they are in the same space as they view it.
What Sells Best On Shutterstock?
Some types of photos that sell best are Portrait Photography, Food Photography, Landscapes (usually with people) and fine art photography (artsy).