I like the title for this. I find the light a little harsh on his shorts, making them overexposed, also his shins. Adjusting the levels to reduce this would have helped. The cap means that his face is in shaddow, so either fill-in flash, or remove the cap would have been better as then it would have brought out the expression more ion his face.
The off-centre crop seems to work. I would have been tempted to remove some of the foreground, as the bottom layer of rocks doesn't add to the effect, and are not sharp either.
Great face and tension in the arms. Fill flash would have been nice to take care of the shadow on the face without overexposing the shorts. A little soft as well.
The idea is good, though the image is not convincing enough. The guy does not seem to be trying too hard to move the rocks, as the legs seem too relaxed to truly be putting forth effort. The rocks are interesting - perhaps bring out a bit more of their textures.