There is a rule of thumb about the horizon in this case applicable to the waters edge. It should not be in the middle but rather mostly water or mostly trees. the middle of the frame is kind of empty. I find myself looking hard at the small bush before I consider the more interesting large trees that are perhaps too far off to either left or right. Maybe just one tree and more refelction.
This is a tiny bit flat, which all my images seem to be this way too. I was told to adjust the contrast and lighting for better effects. If you try this I think you will be very pleased with the results. Hope this helps. You have a great place to photograph!