[twic]

Indeed. When i was little, i used to spend hours drawing meticulously detailed landscapes in profile (like in Worms etc), using MacPaint, following a particular method. I'd get a large circular brush and roughly bash out some terrain (hills and valleys, cliffs and overhangs, maybe some flat bits). Then go along the ground with the pencil tool and flip individual pixels to shape buildings, plant trees, park vehicles, build fortifications, dig tunnels, excavate secret bases, etc.

EDIT: It's possible i was inspired by the (lack of) landscape in Airborne, which i also played a lot:

http://www.youtube.com/watch?v=7G7R9lV9eVY