cheers man, i used a photo of some space launch supports for that intricate stuff along the bottom then painted into it then a photo for the city then painted into it again, that's about it, everything else was worked out. it's only using one point perspective so wasn't too much to think about, took me a while to get those atmosphere/vent pillar things right, i ended up copy and pasting the same panel but resized and grouped to fit the perspective