Yea, I immediately noticed the bridge, its verwitterte structure is the most interesting part of the picture, even though it's almost hidden between the branches. I bet it's worth a picture in which it is the main subject, and not the river. That being said, the river looks pretty cool, too, the slow shutter effect here. (Not that 1/5s is very slow...) The colors of the forest and the river look so different, it's almost as if you used selective color here to change them.
I took some photos of the bridge too but you often get a road or telegraph poles on it. So there wasn't a good one between these of the bridge only. The river is overlayed with blue filter and the forest with an orange filter. Therefore the different you mentioned.