Very nice render
There isn't really much to suggest for improvement, isn't it.
The only things which I could suggest is render the reflections of the left bank (beautiful vegetation variation and colours!) with a reflective shader with reflection softness of 0.001 and 6 or 8 samples (2nd tab of reflective shader).
If so, make sure to disable reflections in the water shader and also make sure you're using the same reflectivity settings in the reflective shader (default = 0.5 for highlight intensity and 0.01 for roughness).
The other thingy would be the somewhat noisy surface shaders. The colours go really well together and I also like the water transparency effect.
If you need help with trying out these suggestions then just drop a line here or via PM.
Quote from: Lady of the Lake on January 31, 2016, 08:56:12 PM
I have probably worked harder on this than any other image I have ever done and overall I like it. It took forever to do; I have to learn to have a more efficient work flow. That being said, thanks for looking and for your gentle suggestions. 
I think that 90% of a render is made in 10% of the time.
The final 10% which make a render a work of art and stand out from the rest is achieved in the remaining 90% of the time, really.
It's the sole reason I post few images. I produce almost all year round, but I'm usually not satisfied enough with it.
Only when you keep pushing yourself to do better, you will do better.
I think your work and the effort you put in it shows it.
