I originally made this for my aunt. She loves space and scenery, so it was the perfect wallpaper for her. -----
This is now one of what will soon be four wallpapers. There will be one per planet. On this planet we see a tree growing between two [old] cities. The world has been industrialized, modernized, and urbanized. But a lone tree grows to indicate nature has not been entirely eradicated. There is hope.