Thank you for the compliments this was my first time ever doing this but had in my head what i wanted to do for a long time, I should of took a picture of the set up. The colors are from colored printer paper made on Photoshop like Ryan said and the metallic feel happens from the water sitting in a Teflon pan. My keeper rate at first was pretty low but after just making the hole a little bigger in the water bag nearly every picture looked great, then i could just experiment with moving the flash and different colors, there is very little post processing just minor adjustments because I shot in raw.