describe the Buchanan's house

"Their house was even more elaborate than I expected, a cheerful red-and-white Georgian Colonial mansion, overlooking the bay."

"The front was broken by a line of French windows..."

"We walked through a high hallway into a bright rosy-colored space, fragilely bound into the house by French windows at either end. The windows were ajar and gleaming white against the fresh grass outside that seemed to grow a little way into the house. A breeze blew through the room, blew curtains in at one end and out the other like pale flags, twisting them up toward the frosted wedding-cake of the ceiling, and then rippled over the wine-colored rug, making a shadow on it as wind does on the sea.

The only completely stationary object in the room was an enormous couch on which two young women were buoyed up as though upon an anchored balloon."

".....a rosy-colored porch..."