Slough Arm of the Grand Union Canal

Superbe !

wonderful

In answer to your question in the note box: Roy thinks canals generally look better in landscape format, as it gives more sense of continuity, with the water flowing through the picture. It wouldn't be a "tight rectangle", because the fact of the topmost branches not being shown would allow one to imagine the rest and gives more prominence to the reflection and the boat.

Outstanding photo.

Superbe prise!