I started working with preliminary texturing on the terrain, aiming to get some pleasing variation in texture patterns. Everything is still horribly ugly due to the lack of nice textures for grass, dirt, etc. I'll have to go back and revisit procedural textures soon, as the texture quality is becoming an ever-more-noticeable bottleneck on this terrain.
The sky also looks a bit better now. It's not "real" in the technical sense, but at least the gradient looks better than before.
This terrain experiment is shaping up to be a decent little demo...I hope to evolve it into an integral part of the XDX engine over time.