This is all about light and contrast, and you show a great scenery. I dont know how it looked @ that moment for you, but I would really love to see more contrast in the sky. The sun shines from above through the clouds and forms beautiful sunrays. The clouds are lit from the top and should be brighter there, and more "crunchy". I would try out a multiply blended layer mask for the sky area, with about 30 to 50% opacity, I guess.
Fantastic landscape picture. The lighting is great and I like the great contrast between the dark clouds in the sky and the lighting reflections of the sunlight in the water. Very very good. Marco