You did well to go out and capture such a great location, and I still like the pics, but in each one there is something to bug me about either composition or exposure.
In the first, the mist is amazing, but I think it would have worked better with a longer lens and a slightly tighter crop, with a rule of thirds composition (water occupying bottom third), and the boat to the left, looking into the frame. There's just too much dead space at the bottom for me.
The second is nice but the blown out sky reallu bugs me. The shot just begs for an ND grad, or for exposing for highlights and doing a levels adjustment for the trees.
The third just seems overexposed slightly.
I don't have much to say about the last. I prefer the others overall.