This one refused to finish rendering. I had to render it in pieces, and stitch it together. It's like the owner of this Keep didn't even want me messing with it. The wide version shows more of the maze.
Bryce 5's trees refused to work the way I wanted, so I used complex models in the solid glass spheres instead. This turned out to be a mistake. Due to the intense reflection depth rendering, this took a week to render.