contrast is weird, water effect is cool though. nice angle, bad color and texture. it could have been better if the water was more in contrast with the rest of the shot
I'm not sure what causes the fringing on the trees at the skyline. I've noticed that in some of my photos as well. This is nicely composed though. This would be a great place to try a long exposure for the water.
Not sure if that counts as a tunnel (it's not a cave, that's for sure).
I'll give you the benefit of the doubt, though. It's a nice pic, however
the blue halos around the trees/leafs are not so nice.