Since this image was taking over 24 hours to render, I sent it to Render Blender. Even with their 31 GHz capacity, it still look 3 hrs 23 mins to render. The image is titled "Gravity." Completely done in Bryce. Metal textures from Jonathan Allen. Floor is default Bryce pewter tweaked to be less reflective. There are about 75 lights in this scene. Hidden out of camera view, the walls have three blue glass cylinders with 25 radial lights in each.