I like Stand Strong, aside from the heavy vignetting at the top, and the fact that the tower seems just a bit off. I cant put my finger on it, but it seems slanted an odd way, possibly due to a wide angle lens distorting, but i cant be sure. The contrast of colors is great though and realy makes the image pop.
Morning Mist is pretty sweet too, but i wish there was some detail in the trees behind the boat. Also, that sky looks pretty awesome. If the original has more sky, i think just a bit more would be nice. Maybe so it extends across the whole frame
Lonley trip is nice, but I wish the paddle wasnt there. I think if there was somebody chillin in the kayak looking off into the mountains, it would help tell the story of 'lonley trip" a lot better than half a kayak paddle. Cool shot regardless though.
Hard Shell has an awkard comp.
The fishing one has great potential, but the rocks in the foreground distract from the fisherman, who doesnt look like he is fishing. If you could re-shoot this, I think it could make a pretty sweet shot!
Hope i helped. Keep it up!