Actually, with that in mind, a first person perspective might be best. The person who's being told what they think is an NPC so I didn't even give it a second thought, but I know enough I'd send a PM to okay that if it had been a PC in a solo game or if I'd been describing it for a single character - best I think to re-write it from that NPC's point of view.
I don't mind the change of colours for these purposes of distinction - as it happens I'm English and most of the characters speak English dialects except two who are supposedly from Rhode Island.
The post might now read something like this, since it's being describe by the character after the event to another patient (really it should be done in a Rhode Island dialect, but I decided to keep things simple and have them speak American English with a mild accent). Normally I wouldn't let an NPC rumble on for so long, but since it's an all NPC scene, I'd let it go in this case. (I'd pause at the end of each paragraph for PC input and react to it). She's speaking to a character she assumes is unfamilliar with the foyer, but familliar with the dining room.
"This is what struck me as I walked here from the front door: as I pushed open the massive doors to this former theatre, I was greeted with a carpet the color of the midnight sky.
"At first I thought the walls were dripping blood, but that's just because they'd been painted blood red below the balcony that encircled the room. Those raised sections of wall above remind me of mumps and chicken pox, what is the proper name for them and that pattern, traditional amongst the French isn't it, anyway?
"When I looked away, back down at the carpet I noticed the stairs it runs over are far too shallow. Heading underneath the staircase I saw it continued.
"Looking round at the exits I noticed they were doors of quite solid wood, in the usual stain. Before I noticed those under the stairs I'd been panicking, thinking that there would be just one, but the three there took it to fifteen.
"Relising the door had closed behind me, I looked for a source of light. Where I would have expected a chandlier, there was an old-fashioned candle-holder with four flickering candles spaced evenly around it's edge.
"After I'd finished surveying the room, I stepped into the shadows of the staircase, and opened the door labelled dining room. Expecting to find the dining room behind it I did, but I know this place doesn't follow the laws of geometry and if I'd expect something else it was just as likely to be there - look at how we left through that same door yet arrived in this armory.
"As I entered the dining room, I was relieved to discover the floor was ebony, but struck by how cold it was.
"The walls were what I thought at the time was a hideous yellow and blue polka dot, and at first I tried to avoid looking at them, to start with by focusing on what would normally be the door to the kitchen, a modern restraunt style, you know, stainless steel with a porthole type window in the top.
"With great effort of will, I shifted my gaze across the floor to a white object which proved to be a table cloth on one of the four tables arranged in that intresting square pattern around the ice sculpture of the naked lady - she reminded me of myself - I wonder who the sculpture was inspired by?
"I snapped my head up to the ceiling, but could not find a source of light, I then started to look at the paper more closely, and relized the dots were big enough to hold a wall light in the centre of some. I was just thinking that the paper wasn't so bad after all, when Nathan arrived."