The warm tones of the landscape contrasting the cold of the sky. It almost appears as a painting or a litho... there is a graininess / grittiness to it also. The one detractor is the rod tips in the lower left. All in all... peaceful, still, awakening.
There are a few "rule of thirds" points also. The trees on the right (inside of river bend) Draws the eye. The broken line of blue sky also draws the eye.
I would have framed the shot with the fog (horizon line) down in the lower third to really make it pop.
Like this...
Here the eye is drawn to the fog line and the point on the right (an intersection of two individual 1/3 lines).... "What's around the bend"?
Cheers
Doug