The composition works for me because the far shore is very high in the frame and still there is enough mountain and clouds to establish the scene. The drama is in the lake but wouldn't be as effective without the top portion.
I like that this is mostly the peaceful reflection - such dreamy clouds.
My favorite spot for photography is the town lakes just above my home. Today it was a reflective mirror with a few ripples created by the breeze. This photograph represents water and air.