I really know very little technically about art. It is just not on my radar. However, in contributing to and reading this thread, something has occurrd to me. I notice art when it is very good and when it is very bad. Most of the hotel art is in that vast middle where it is neither very bad nor very good. It is simply something that breaks up blank spaces on walls. If there were no "art," we would certainly notice and would probably build a thread on "Why are there so many blank walls in Hilton hotel rooms?"