Plenty of space to overlay text at the top, but the bottom edge brings the spotlight's white beam area too close to the edge of the frame, with not much space. This also would look good framed as a vertical, since many PSA type ads will be printed, and a vertical composition makes much more sense, and would allow two ample-sized black areas, one above, one below, into which to drop text. You could enlarge the canvas in PS and paste in the additional black area at the bottom.
I really like the way the keys are reflected in the side of the glass.