Nice work. For the newer users, can you post the wire. I suspect it's very simple and I think it would help clarify the power of textures.

Speaking textures, nice use of them, took me a minute to spot a pattern. That's a good thing, means it didn't stand out.

Out of curiosity. Given the simplicity of the scene, what were the benefits of using multiple passes?

[Edit] BTW if you haven't checked Klaus' website you should, some really nice work on there.