I'm gonna go on a different tack to Articulated.Snake and say I actually like the pose. To me it doesn't read as running, it looks like she's carefully stepping through marshlands, trying to find her footing. That may seem overly delicate for a Barbarian type character, but I think it works well enough to tell a story visually.
And yeah, learn to use Photoshop or the Gimp. Editing can take you a long way, to some extent you can even change the whole mood, time of day, etc.
Lastly, that's a cool-ass location, and you've actually done quite well to sell the scale as far as eye-level and the look of the debris. The moss on that root/log looks great.