That sounds like a question for fauxer. I have worked with some amazing faux finishers from New York. I have seen them do some amazing things. I was on a job wallpapering a couple rooms one time and there was a couple faux finshers working in the 2 story foyer of the house. They were making the whole foyer look like it was made of Block. It was hard to tell unless you touched it. I guess that would be the one down fall. Every body would be touching walls.