Very often, good images are refused based on similarity issues. Contributors submit technically perfect (and usually sellable) images and get frustrated when they are refused.

Imagine a boy laughing photographed. One image should be enough, not ten of them. No matter if the photographer moved 2 meters to the left, the concept is still the same.

Similar images in Dreamstime's acceptance represent the content that fits a single concept, has small variations in composition OR model expression. Usually it's the kind of content where the designer/buyer can choose any image from that series without changing the visual message of his design.

This issue happens more often at studio images but applies for any kind of subject.

Price wise, this kind of...