Nice. I might crop out some of the top, and possibly include a tiny sliver more on the right (if you can). Maybe rotate it slightly in Photoshop/Lightroom so the horizon is level.
Experiment with a horizontal version as well with more snow and sky cropped out.
It's a nice photograph with atmosphere, but for a more professional look, try making a story. That man trudging away from the car's lights seems interesting, with the street lamps enclosing them both. In other words, I would have zoomed in way more to see if I could capture a story.