The Sky and everything in it is GREAT! The water is working very nicely too!
But the foreground terrain is leaving me a little disappointed.
This is just my personal feeling and should not be taken as anything more. But as I viewed it my eyes first went to the foreground where I got my balance as a viewer, then up to the shy were I became very impressed, then down to the water that gave me my impression of the scale, which returned my eye to the foreground where all the air went out on me. The image has a good composition and everything, good control of the viewers eye. But the terrain details in the foreground need more.
Just my thought, but a blackish reflective surface with the texture of lava rock would be gorgeous here.
Nice image over all.