This shot was taken with two flash units pointed at a graduated green/yellow acetate sheet behind the water tray. YN467 to left. Vivitar 283 to right. Flashes at 1/3rd power. Orange coloured water in tray and bottle. Graduated green/yellow acetate sheet behind. 2 second delay on camera. Flashes fired manually. The acetate sheet was made in Photoshop by laying a graduated green/yellow fill on a canvas of A4 size. Then the acetate sheet was printed at a local office services shop. The orange is a bottle Irn-Bru. For non-Brits, that's a soft drink favoured in Scotland. There's a blog started recently where you can learn the techniques to make droplet photos. feggyart.wordpress.com/