By some strange default, placing photographs of beautiful people and objects gives me a sense of calmness rather than jealousy, or hatred, or loathing, or anxiety. Without one, the wall in my room is naked and fleshy in the unforgiving morning light *. I've always found it so interesting seeing other peoples inspiration walls. This part of a persons room is so personal and may even tell you a bit about their style, interests and perhaps ** insecurities?
*(but not in the 'Im-a-Lucian-Freud-artwork-which-means-Im-brilliance' type of way). ** Or perhaps not.