My layout will be 48" tall and there is a ton of commotion on the layout that I think would draw the eye away from the lack of sky. I just wonder if putting blue on the ceiling and wall would help immerse you better. It's hard to tell without prior experience.
I think painting the walls blue would be an improvement for sure. The electrical panel will also be covered up with an access door which will improve the look. Being in the heavy construction phase right now the room is a bit of a cluttered mess but once things are tidied up it should be more immersive. Black skirting will also be added hopefully soon. Thanks for the suggestion!