These are nice shots. Number 1 is appealing, but my nod goes to number 3. It's a more interesting, more technically sound photo and I think it speaks more to the "landscape" theme. The isolated, decorative fence on a snowbound sunset is a really interesting image. Nice work.
The processed snow-drifts could easily be oceanic or lunar. Really cool.
Learning to control light is IT. That's the whole deal. In a nutshell and a constant struggle.