This is a beautiful landscape portrait. I like it. BTW: turn the image 90 degrees to the left and you'll get another great image (or turn it upside down). I'm serious. It will give you another perspective on the lines in the composition.
I'm learning to recognise your photographs from the thumbnails This is so well balanced in its composition that it adds to the overall calmness and stillness overall. The line of clouds closest to the horizon reflected in the water is just perfect.