This is somewhat the look I hope to achieve in our new master: dark furniture, white comforter, neutral walls, and pops of color. My plan would be to change it up regularly by changing out the accent colors of pillows, knick knacks, etc.
I love dark brown or black furniture--it seems to go with anything! The crown molding looks wonderful, although I've never seen it so thick. Be careful scaling the proportions to the size of the room if you want to re-create this look.