C&C:
#1
Your subject is wonderful. However, I feel it's lacking impact, as I'm sure you wanted to express the landscape's beauty. Part of that is, I believe, that the mountain and its peak has a relatively small role in this shot. Whilst I can understand why you chose to place the boat at the edge, I just thinks it takes attention from what I'd like to look at in this photo: the landscape and the mountain. I think there's a lot of dead space here: under the mountain reflection as well as above the mountain itself. In addition, it seems just a little under exposed, or just lacks contrast. Also, I'm fond of the black part of the trees to the left. I'd like the cloud to be white, which it isn't here. Here's a quick edit where I've tried to visualize what I've just said.
#2
Here the clouds are white as they should be. They add a fine depth to the image. One thing I'd like to see more of in this photo is the foreground. Those flowers in the lower left, for instance. I'd also like to see more of the peak on the right edge. The snow also adds to the image, imo. It shows how far up you've been. Again, I'd like it to be brighter. Details in the trees are lost. I can't do much about the crop of this, but I'll try to address the other things. In images such as these, they are best when viewed big. Why? Because we want the viewer too feel he or she actually is there. Then you need a correct exposed image to really bring out that view. My quick edit addresses that, I hope. I added a little bit of saturation as well

A small f-stop for a big depth of field i key, imo, in such valleyscapes.
#3
As for this, I'm not expert on simplistic images, and don't feel I can come with anything useful. Sorry :/
This said, I think these have great potential. I really like the valleyscape.. and the mountain shot, they just need a little caring :hugs: