Cave

This is one of the simplest scenes I have ever created. Modeling took no time at all, all this scene contains is a tube with noise applied on it and a box with a displace map to create water. Most of the work consist of materials and lighting.
The material for cave walls is composed of two materials (grass and dirt) blended together with a very random mix map while the box has a raytraced water material on it. A strong light is placed at the far end of the cave with some fog applied to give some volume to the incomming light.