Man in the mist

I want to re-do the cover for my self-published e-book "Frankly Charmed" and I would like to use this image. May I use it for that purpose? I plan to turn the figure into a sillouette and doctor it up just a tad to make him look like the elf who is the protagonist of my book....give him boots and a cap, for starters.

To see what my cover looks like now, take a look at it at [link]