Awesome, awesome, awesome! While there was nothing wrong with the North American cover, I think I would have preferred this image. I looked it up and it appears they took the purple tones out in the final cover, rendering them in dull earth tones. I have to say that is a shame. This version is really great.
Furthermore, as far as I'm concerned, The Emperor's Soulis one of the finest pieces of fantasy short-fiction ever created. If you like the genre or even think you might, you need to pick it up as soon as you can.
It won the 2013 Hugo Award for Best Novella, and was most certainly deserving of the honor.