I think it looks pretty good Phil. There seems to be something about the cave though, and I can't really pinpoint it, but it doesn't seem to have any depth, or at least not in an obvious way. maybe if you had the light outside and above the cave, shining down towards it, causing shadows to go into the cave, maybe it would look more like a cave to me. Of course, that's your option. :) I liked the one above this better, by the way... I think that material on the terrain wall on the left is very good. What is that, a procedural? It seems to have some real depth and realistic surface feautures on ti.