Unusual Viewpoints
I think this picture has an unusual viewpoint because most people will never experience what its like to go cave diving. This picture provides a new insight to what people experience underwater. It's not your usual pool where you can see a visible bottom, this diver is exploring for new things and figuring out the mysterious aspects to the ocean. I think that's what makes this photo more successful.
I think this picture has a weird angle to it because its an overhead shot in a weird environment. When you're viewing this on the ground it probably looks like a giant mess, but seeing it from overhead it seems way more chaotic. You can see the people who are higher up or the people getting trampled on and this whole photo is unusual. I think its successful because you don't really know how the person was able to take this picture, and there will probably never be one like that again.
This photo is unusual because the person taking the picture somehow captured this moment outside the cage. Its unique in the sense where you feel like the camera is free and they actually took a picture without the restraints of the cage. It shows the people in the other caged environment which is different from most pictures because the photographer is usually with them. This photo is probably successful because the shark looks like its going for the camera and the picture seems free, and without restraints.