Pfff, really tough topic.
As said before, there are so many great photos here, uploaded this year.
But, since i have to pick one:
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Photo © Josep Tomas - Iberian Spotters
I like it because it´s an unusual perspective and features a condensation effect i haven´t seen before on a beluga. Plain and simple composition, just great.
By the way:
a big "Thank You" to all photographers, keep those nice photos coming,
merry X-mas and a happy new year,
That's it! You people have stood in my way long enough. I'm going to clown college!