Okay, another question has arisen. I have decided to make a 'thin' 3D background, but have been struggling with a theme. I have seen a bunch of different walkthroughs for creating the wall and have seen a ton of pics both with and without 'walkable' ledges. I read a bit and understand the importance of active stimulation needs, but was wondering about the usability of the wall ledges outside of providing a larger surface area. To my knowledge, dragons aren't the most graceful of creatures with their movements; and they aren't the best of agile climbers. Is there a majority truth to this? Are their pro/cons to the ledges outside what I have mentioned?