Consider finding an appraiser to determine the value of your artwork. Appraisers are trained specialists who work for a fee. They evaluate your piece and give you a written statement of its value. Although the following organizations do not provide appraisals themselves, they each publish a directory of their members.
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).