I combined these 4 images to create the wallpaper images shown below them. Click on thumbnails to view at 640 x 480 dpi Background Layer 1 Layer 2 Layer 3 Blending Option: Normal Blending Option: Color Burn Blending Option: Difference Blending Option: Color Finished Images - 3 color variations:   Click on images to view, use, and save at full size. Original Colors Blue Version Green Version       Description for those at Graphics.com: I created the 4 thumbnail images below in the Tierazon Fractal Program. Opened them in Photoshop 7.0 and Layered them. Applied the Blending Options shown. Gave the top layer a very mild gaussian blur. Flattened it and toned it down slightly.