I stumbled across this image from the Milestone Hotel in London. The hotel's conservatory is done in this striking black and white scheme. The striped draperies and black furnishings have an interesting balance to the all white room.
This pulled together style could be easily recreated for a conservatory, sun room or room with a white on white theme of woodwork and built in cabinetry. Painted or upholstered black furniture and the striped window treatments are the core design elements.
Something that makes the draperies really excel is the combination all done in the same fabric. There are roman shades, regular draperies and a double valance.