Nr 1 and 4 have some interesting elements. 1 because it's almost perfectly monochrome, i.e. shades of same color (white-grey-black). However it lacks on composition.
Nr 4 has two things going for it, composition is interesting, dog leading up to the house with nice depth of field and the color contrast of brown dog on snow. Not sure the edit improves on the original, especially since you get a blue tint. Try just adjusting the white balance a couple of notches, and the photo should be "ready to go".