Sometimes you get lucky. The camera wasn’t level, which is an all-too common problem of mine. It seems no matter how I try to remember to address that basic issue in the field, I end up with at least a few shots from every outing where I forgot to pay attention. This was one of them.
Fixing the imbalance is easy enough, but you end up losing part of the picture. The resulting crop presented me with a choice of losing either the overpass, or the feet. Until I remembered I can change the aspect ratio from the original, and once I altered that from 3×2 to square, not only did I fix the problem, allowing me to retain both the feet and the overpass, but the picture was remarkably better composed.