Thanks guys for all the feedback. I really appreciate it.
I'll try moving the decals further from the wall as suggested, also looking into z-fighting with decals, and the posted tutorials for more information
. The thing that confuses me is that the clipping doesn't happen when I'm playing in game, it only happens when I activate the flythrough. So, I'm thinking it could have something to do with the camera settings.
Phil, thanks for the suggestions, I'm going to work on the sky a little more, play around with the clouds and add the sun effect. Also, going to add an escalator up, and improve the environment, give it more variety.
SltrOlsson, the idea behind the scene is that the tree house was build on the tallest tree that was found in order to get away from civilization. Place to partake in solitary activity such as reading, and painting.