diamond cameo is where photos are arranged into a diamond shape, as it means all photos get equal coverage. I took 4 photos of a class mate with different angles of his face, using the studio lights and a continuous light with a soft box to add some contrast. We positioned it slightly above the subjects face, and slightly on the right. This is done to mimic a butterfly effect.
Here are the photos I took and decided to use. I colour graded and adjusted mainly just the shadows and highlights to make it look very retro like. Here are the editing setting.