It's a crisp, bold, preppy combo, but why not make a statement in a guest room? My first thought was black on the walls to float your bed and other furnishings against, then I saw your cool ceilings -- acrylic gloss? Love them. Since the bed and carpet are white, that leaves you emerald if you want to go bold. Here's some inspiration:

Master Bedroom : Stately Modern Style · More Info

Master Bedroom : Stately Modern Style · More Info

Emerald green IMO is best in small doses I like the green on the bed better but at most the wall behind the bed.

Really, I wouldn't go with that emerald green on the walls. Stop where you are and use just a few pillows and accents with the emerald.

Now I'm really intrigued to hear more opinions, because I adore the deep green BR above. I thought it was a winner, but apparently not for everyone.

It's only paint, and to my eye it's enveloping and sophisticated. I think that men would like it, and that's never a bad thing. To me, guest rooms are the place to take a risk. Anyone else have a reaction?