I decorated and designed my main setup back in 2007 (can’t believe it’s been 11 years!) but when creating it my main goal was to do something original, minimal, and also something that would age well as I find decorating year after year a right pain in the crack lol.
My main inspiration was from sci-fi flicks. For me, less is more, so I don’t believe in hanging pictures everywhere to fill wall spaces or having plants in every corner of the room. Do what you feel comfortable with.
As for reference, this is my main room/setup. As I say, I did this over 10 years ago now and it’s due for a change where I’ll probably go with darker colours, but I’m still happy with it. (Full kit list and other pics can be found
here on my Blu-ray.com gallery)