A simple and sublime capture of a most wondrous piece of instrument. The Photographer captures all the essentials: Size, presence and the dynamic structure of the pipe work.
Good use of technique as this type of object with the pipes and curves can make for a disjointed capture but the Photographer manages against these odds. The only suggestion I would have to offer would be to take the photo at a lower vantage point and with a greater upward facing angle to give the organ more gravitas and presence.
Overall a very lovely photo with a lot of draw and awe. Bravo.