Made for a Weekendchallenge. Maybe you can learn from my own progress, too. :)
The scene is fully shaded and textured as in the preview Image, I even tried to name all objects and materials for your convinience. Also i added minor adjustments and defocus in the compositor.
Short:
Blender Internal Render, Shaded, Textured, Named, Composited, (nice to look at in GLSL)
Scene preview on youtube: http://youtu.be/qqN7DEeUdIk
Nice Planet...