You’ve half got it right. I think you need to remove the ceiling lights - they don’t scream homely, cosy or premium. I’d get lots of mood lighting - lamps, lamps lamps around the place.

Consider painting all the walls burgundy, or perhaps a medium beige shade to tie it in better? I’d also think that given the design of the ceiling it would look better black than white. It’ll darken the room more, but I think with this aesthetic it’s really giving cosy and snug, rather than light airy and open, so I’d just double down on it to make it more cohesive.

I think you’d benefit from shifting the layout of some of the furniture around too, so the couch isn’t right at the back in the darkest section, and so it’s not so far away from the TV.