Based on my original Dieviant World [link] The original was a photomosaic of an image of Earth using DiviantART user icons... with this one I made a photomosaic of a planet map of Earth using DA user icons (I have more now)... and then rendered it on a sphere with stars in the background.
Unfortunately I couldn't get make the images unique. The planet map was huge to make it render in PovRay without getting pixelated. I don't have enough memory on my system to generate the photomosaic needed for that where all images would be unique. The vast majority of images are not visible anyway.
I used Metapixel to do the photomosaic and PovRay to to the mapping of the image on a sphere.