Although I agree with Bill's suggestions in general, I don't agree in this case. In your photograph,with the horizon being centered up and down, and the moon being centered left and right, creates a very static image. This is what makes this shot work. This 'static" composition, helps best convey the cold and stillness seen in this image. Sometimes rules need to be broken and in my opinion this is one of those times. Also the tree on the left and the smaller one on the right, leads and keeps you in the photo...Well done.
Richard, Florida Keys
PS I'll be in Whitehorse the latter part of June.
Thanks for the suggestion Bill. You are not the first to make a similar suggestion and I think that I will give it a try. Will test my mediocre Photoshop skills.