Great depth in the picture, with wonderful tonal seperation between the picture elements. The other thing that really hit me was that on my monitor, it looks more like I am looking through a window, rather than looking at a two-dimensional image.
Wonderful! I have always like photos that make it appears that you are standing in the water when you look at them.
Is there some quality of the process that renders the reflection so dark? In this case, the black shapes of the water on both sides of the creek help give that feeling of depth others have mentioned.