Dreamstime:Poor color: this image has a low color profile and needs improvement in order to increase its sales potential. You can process your image with color enhancement software, such as Photoshop, giving it the appeal it needs. Poor lighting setup, poor contrast or incorrect exposure.
iStock:Two or more of these images are very similar in subject matter, perspective or style. We would like to see a demonstrated range of diversity in technical ability and a variety in subject matter. So if you have anything else you can show us we would love to see it.