Beautiful shot, but I don't tend to have arty, set-up dreams like this! I see this more as something in the room you sleep in which might trigger dreams. Strange use of negative space... I wonder what you were trying to achieve with it. Maybe this would be more effective with the subject to one side of the frame, or more tightly cropped. 6
Edit: of course this isn't helpful. I don't see any constructive criticism in there (/sarcasm)