I kind of see what Phrank means. I hope you don't mind, Bev, but I took the liberty to experiment a bit.

Cropping didn't seem to be the answer, so I tried veiling
the background in shadows. Seems to put the focus on the
moss, bridge, and water a little more, without tightening
up the image too much.

(Don't mind the white stripe in the top left corner. That's
my sloppiness/tiredness :-)