None of this shot looks sharp to me. I don't know if the shot has suffered from camera shake, or if it was windy and you were using a slow shutter speed.
The sky is washed out and has no detail so doesn't add anything to the image.
I think you have a tough job shooting that far from the lake with that haze over it. I can only suggest that you try re-shooting at a different time of day, when the light is much softer, or during sunset / sunrise when you could get some really interesting colours through the haze.
Use a tripod and cable release / timer to avoid camera shake, and if is windy ensure you shutter speed is fast enough to avoid blurred trees.