Rayraz, I'm glad you pointed these things out to me. I've decided to make a normal AA render with double resolution before embarking on a week long render. That way, I can make the necessary corrections. This morning, the render line was only half way through the second time down. I see what you, and others, are saying about the rocks and their ambients. the other thing I'm going to fix is adding a little more foliage to cover up the bottom of the tree where it meets the ground, and whatever else looks unnatural.