This photograph is really great, from conception through to set-up and execution - except that one area in the back corner, by the floor lamp. I'm not sure exactly what happened, given your rigorous process, but it threw me immediately from "oh wow, this looks like a proper photograph to" "it's definitely a manipulation". The whole area below the picture frame is a different colour on the wall, as though it's got some weird shadow or was blended poorly. It's also kind of caused odd-looking imperfections on the lamp stand itself, which I assume would be completely straight under normal circumstances. Rest of the manipulation is very nice, just that one area could use some patching up to bring it all together.