In time every tree branch that falls into water loses all its leaves and bark. Where the branch is below the water it goes dark with the water-logging. The part of the branch that remains above the water tends to become weatherd and bleached. This branch has followed that path. The reflection that produces a line of symmetry at the water level appealed to me. However, on the pond bank and through my viewfinder I only appreciated it in three dimensions. When I got it up on my computer screen the form in two dimensions jumped out at - it's a fish swimming left to right. You can even see its mouth!
photo © T. Boughen Camera: Lumix FZ1000 2