The colors, greys, green, orange
Wall color is Benjamin Moore Coventry grey
Coventry gray by Sherwin Williams
Benjamin Moores Coventry Gray for bathroom walls and cabinets
Wall color, with white/cream drapery
you could also do this kind of ceiling in your bedroom(s). a bit more modest - and may be less expensive to build. Then you could put a fan in the middle (instead of a fixture) and still have nice ambient light from the ceiling.
You'll be able to carry off an accent wall in a lighter grey