These are some images I did for my "Cinematic Interiors" tutorial.
https://gumroad.com/l/MVGbv
Throughout my career, I found myself over-complicating things, spending too much time on 3D modelling or trying to set up realistic lighting for interiors.
This method will allow you to cut a lot of corners and concentrate your effort on storytelling rather than on technical aspect of cinematic lighting of interiors.