Number two is a wonderful image, rich with texture and ambiguity.
I like the water color in the duck images and the reflection is nice as well, both images could be sharpened more aggresively imo. Number one is iconic, I do enjoy the warmth, but you really got have cloud/light drama to make that overly exposed "scene" work, or maybe I just spend too much time in photo forums and have seen that place done a thousand different times in a thousand different ways...

I think there is great subject matter potential in the last image, maybe just work to simplify the comp...like I think I know what the main subject/idea is supposed to be, but then there's that snowmobile....
