Anyone recognize this space wall?

I know I've seen this before but now I can't remember where. Anyone recognize it?

I do.

Here, wasn't it?

I'm not sure, thought it was one of Don Mateo's, but I didn't see it...

It looks freakin' awesome! If I didn't have a pretty cool wall now it would be mine now.

That's one of Don's butt cheeks... hehe.

that's one of don's butt cheeks... Hehe.

lmao