Have you looked at the libraries already on episode catalog?
I found this on Pixabay for the Norwegian landscape
These two are probably the closet to what you are asking for, these are from the Episode Catalog
only daytime one
Kitchen from Pixabay
Outside from Pixabay
These are just some I found, but I would definitely go onto Pixabay and look around. As for the company background, I can’t make backgrounds but if you contact @FlowerGriefer she does amazing art so she might be able to help you there.