Very nice use of perspective and the image certainly tells a story. The path and the trees take you right to the person and their dog. Having them as the only living things in the image conveys the heartiness of those who brave the elements to, among other things, take our beloved best friend out for a walk. Fantastic that the person even had a red coat, which stands out marvelously against the great tones of the rest of the image. You've set that mood wonderfully!
A few technical issues that may help to make it an even more powerful and visually stunning image. One would be to add more contrast. As it is the image is a bit flat. It's dreary day so creating more contrat between the snow and the surroundings would truly make the image pop.
I also think the image would be helped by shooting from a lower position. That would give the path, and the walker, and even more impact. While the lines do lead straight to the subject (I'm assuming your intent was have the person and the dog as the focus), getting lower would give them an even more prominent role and enhance the view leading up to them. It would also possibly hide the distant car, so the image would convey even more solitude.
I think I would also go vertically - portrait crop - with this image using a pair of trees to frame the scene. While your lines do lead into the subject, the areas outside the trees make me curious and pull my eyes away from the center, especially that big monument, or whatever it is, one the right.
Lastly, I don't see what lens you were using but if you had a zoom or telephoto I might get in a little closer. Also, having longer lens (if you do) would help create a little more bokeh.