An older image, but worth posting I guess.
This is an older rock and cloud technique I've since abandoned. The planets are TG2 planets with image maps "mapped" to them from what I remember.
The astronauts were post worked in from an image I found on flickr since I didn't have any astronaut models. I waited to post it as I wanted to get the owner's permission (even though the astronauts are only about 5% of the image). He still hasn't responded and I can't even remember who it was. So I decided to go ahead and post it, as I am proud of how I was able to post work them in nearly seamlessly, despite different lighting and contrast conditions in the original.
If it pisses someone off, I'll remove the image!
Anyway, hopefully this will spark some ideas for you all...since I use your posts to spark my ideas!