I've been a member of Second Life for over 14 years - I've built many homes in the past all Prim based.
I've recently started creating homes in blender- which I'm realizing takes a lot more effort, but with the benefit of being more precise and highly customizable!!
Previously my Prim houses sold quite well, I took them off the marketplace so I can start posting my mesh homes- I listed my Prim houses quite cheap, around 2,500L and they had no problem selling.
My question is about
Your build is looking good
I noticed yesterday in one of your screenshots that two walls in the entrance hallway alcove are using the same wallpaper texture but appear to have their UV's scaled differently :
Before any UV unwrapping, in Object mode, check that the 3 scale values, X Y and Z are set to 1.000. If they they are not then you need to Ctrl A > Apply Scale :
When UV unwrapping outside walls or walls of a room which you intend to texture w