One question & not just to you Gruni but to all that make enclosures - & yes I am guilty of it to.
We make these awesome looking enclosures (& yes I think your's is really really good) with realistic back walls etc but then always leave timber side walls. I have never seen, in nature, a rock wall side up to a flat piece of polished timber. I mean, in fish tanks some people use those wrap around weed pictures so....
Now I'm just thinking out loud - I guess when I get around to building my own enclosure I may see if I can do some sort of side rock wall or picture with trees & bush that makes it look like an actual scene, maybe even with blue ceiling with fluffy white clouds.
Or if any one has pics of something like that so I can steal ideas...........