I feel like an art connoisseur of David Bowie because I know all of his eras so well. "This was the era shortly before his heart attack during his 2004 world tour. Note the longish hair, mostly natural color, and the polished yet casual clothing.
David Bowie has a condition called anisocoria, which is the medical term for unequal pupils. At he got punched in the eye by his schoolfriend, which caused his pupil to remain permanently open. Some people think his irises are two different colors.