A pair of Polar Bears size each other up in Churchill, Canada as they wait for the ice to freeze. This is one of my three images that made it to this year's final judging round of the prestigious Natural History Museums "Wildlife Photographer" of the year contest.
Very nice picture - with great light and processing and action. It earned its place in the contest. Good job.
My only fuss is with your title. They were not fighting - they were sparring (play fighting or wrestling). They only fight when they are mating, and they don't mate in Churchill, and its far bloodier than this.