#1 has to much foreground for me. You might consider cropping off the bottom 1/3 or so of the image. Just leave a bit of the snow. I'd also address the perspective distortion.
#2 The light is backwards. Humans expect things closer to them to be brighter than things in the background (fill light). My eye keeps dancing around the image and doesn't want to settle anywhere.
#3 not enough depth of field for my taste. I'd perfer the entire image be in focus. That takes a smaller aperture to accomplish. I also try pumping the saturation a bit.
#4 I think has some potential but it has the backwards light and it will take a bit of work to maximize the contrast and texture. I'd want to crop the left and get rid of the big blur in the foreground.