Wall 'floating' in reflected clouds

This is a section of Lighthazzles reservoir at Blackstone Edge, above Littleborough. I loved how the wall, which runs across the middle of the reservoir, looked like it was floating, particularly in this image, where your eyes are tricked by not being able to see the rest of the reservoir.

Camera/lens settings: ISO 100, f/11, 1/160s, 55mm, hand held.