okay nothing ground breaking here, but I was quite impressed with my effort, the clouds do need a bit of work do make then swirly whirly (which I've no idea how to do), oh and sorry about the image name it was the first thing that came to mind lol, C&C please.
terrgen
default render settings
render time about 5mins
two light sources (one off screen)
Post work
Star field from a google image search.
lens flare added with gimp