As someone who grew up a huge fan of the Teenage Mutant Ninja Turtles, I just had to share this incredible shot of one from the Ningaloo Reef in Western Australia. It was taken by specialist underwater photographer Aimee Jan, and won the Ocean Photographer of the Year 2021, as run by Oceanographic Magazine.
Alex Raphael 
Fantastic photo!
Yes, it was the overall winner. A very deserving choice.