Cool scene. No pun intended. The Modest Mouse album title Moon & Antarctica was just sitting there for the taking but you left it. No matter. I especially like how the stars' reflections are shimmering as if the wind is disturbing the lake. Nice work.
Great concept! Love the powdered mountains and the star reflections. The island reflection is kind of jarring though - it doesn't look like water waves like the star reflections do. Maybe black plexi instead of a mirror would've given better reflection there. But a fantastic landscape - and nicely lighted like it is indeed night. My top 5.
The snow and reflections are nicely done. To me the photo feels like it isn't level - downhill to the right. I think it is the curve of the lake and the near edge of the island that gives this feel.
I really like the idea and what you have tried, I just feel that the point of best focus is off a bit - although I can't really say where I would have preferred it. 6