So is that a block of flats you have there, with the levels separated? It looks brilliant!
It is at the moment ... I might cut in some trapdoors so I can link levels in the future but haven't done that so far.
I am really pleased with how it's turned out. It was a lot of work to paint it that way and get it all varnished etc but I'm glad I have. First cleanout will be the decider. They will soon let me know what I've done wrong and should improve for the next one I do!