Mine is pretty much a no-brainer, since Federico Fellini my favorite director.
This is a shot from his masterpiece, his 1963 film 8½. To me this is one of the most beautifully composed visuals of all time. It’s just so incredibly haunting and when viewed in the context of the movie it gives me an eerie sense of loss and bewilderment. I almost feel suspended in mid-air myself, like in a dream.