This image has soooo much potential!!! Let me add the disclaimer that again this is just my opinion and nothing more. For me I see the rocks as distracting elements, they don't have the character of the bridge, to me they take away from the photo. Also the tree on the left distracts a bit. I can see this cropped with that tree taken out and the rocks on the bottom cropped out - then to me the focus is bridge etc and minimizes the distractions. If you have access to this location again, I would try to take the shot from the center rock, using a wide angle lens on a full frame camera - would like to see what that would look like. (also, if you could capture it with a salmon jumping in the river and a bear in the background that would be awesome sauce!).
Thanks much for sharing.