This is today's work. I basically created tags for each decorative item. For example, in the screenshot you can see the currently available floors, and at the left of the window you can filter them according to each tag. Tags can refer to texture, color, or general style like "modern". Characters, including the player, will have a preference towards certain "tags" and will be happier when their place is decorated accordingly.
By the way you can see the new trees and bushed I made. I think I've finally nailed the style I was aiming at. Oh and some of the tag icons are placeholders.