Interesting. I would have to disagree with GeoBerserker. I think the frothing white water and the white of the sword breaks up the darkness around the scene. With the sky being dark, it surrounds our hero with dread and uncertainty. Even the Heavens are not in his favor. A sliver of hope is shining through by the light hitting his sword. The light spills onto the froth of the water, allowing him to see his opponent against the rocky background. Just my opinion.
Love the concept of this piece. I find I really like the atmosphere and mood you put into your work. I would say though I feel the frothing water is a weak point in this particular one. I feel it is way to bright and white. When I look at the rest of the background, it is very dark, gray and overcast feeling. I notice that the sword and helmet of the would be hero is bright as well, so maybe there is a break in the clouds above? If so, I would suggest maybe to adds some rays or something coming down, it feels somewhat awkward as it is. This is just my opinion and I know you didn't ask for a critique. This isn't to suggest that I am not a fan of your work, as I am definitely a fan and feel I can learn much from looking at your work, so apologies if you are offended, not my intention at all.