I have no idea that picture shows nothing of the space the fixture can easily be replace but thank god the popcorn is gone so post a pic of the space with your furniture layout that is how you get help.

@Patricia Colwell Consulting and @kandrewspa thanks so much for your replies! I added more recent pics of the space (still a work in progress!) Now there's just duct tape over the box, and yes it's 8' there and it lines up with the peak of the vault. I just thought the fixture looked weird there because it is so close to the "edge" of the ceiling there that it feels imbalanced. A standard round flush light will probably go all the way to the edge or even past ...… which is why i'd love something more long and narrow to kind of follow the edge, but i don't think track lighting would work well. Good poinit about the lamps being more important though!

You're right, that is close to the edge. Their attempt to center it went too far. I would look for a fixture you like and then consider moving the box over six inches (or whatever it takes) to make it work. Or just cover it up.

I would go with a simple square, flush-mounted fixture right now. They are fairly inexpensive. Something non-obtrusive.

Move the box to the side of the wall, possibly put a non descript sconce that will light up the ceiling and around the room. or swag a light fixture from that point to the ceiling over the bed.

@RL Relocation LLC I love these ideas, thanks!!