It's a shame that flipping the symetry here really stands out by not being able to eliminate the church on one side (I'd eliminate the right one personally). If the technique didn't jump right out in a viewers face this would really have a wonderful fun quality to it. Still I think it has above average impact and is a good image. Even as just a half an image this is a really awesome scene to begin with!

Is it a mirrored image?

Very interesting. I was really taken by it, and then I realized it was a mirror image. Looks pretty cool.

I know who shot this, it's Dr. Rohrschach, right?

J/k...

It's a fun idea. As an aside, the snow is totally blown out, and the trees are almost black. The metering on this did not go that well, it seems.

This leaves me wondering why you chose to mirror this image. The result is perhaps more pleasingly composed, though I'm not sure the overall effect is positive.