Judging for the seventh annual Ocean Art Underwater Photo Contest, organized by the Underwater Photography Guide, has wrapped up, and the winning images and photographers have been announced. Duncan Murrell took Best in Show with a photo of the courtship behavior of spinetail devil rays. The contest organizers have shared with us some of the winners and honorable mentions below, from the 16 categories of underwater photography. Captions were written by the individual photographers and have been lightly edited for content.