I guess I'd better be a bit more specific, sorry. I know the set's going to look slightly (or more than slightly) unrealistic. I'm fine with that. My only issue with the black ground is that it looks more like background scenery of some kind. Like in Jake's screenshot up there where it's used alongside the bricks. I just thought that maybe something in a slightly lighter shade could be used. If I'm annoying you, then sorry, I'll stop complaining and draw something instead.