|** Hello from the Critique Club **
Of all the photos I have critiqued or commented on, I find my opinion of your photo to be far different than your score and different that others have commented on. In short, I really like this one and I think it fits the challenge description right on.
The challenge is tunnels and caves. The composition of this makes me feel cramped, trapped, looking for a way out. In other words, your photo has what I have in mind for caves. Certainly, your composition is different than all the others, but that is why I like it. First, the negative dark space and limited light provides the atmosphere I mentioned. The light, pipe, and rock, suggest a crawlspace, a personal cave, as you suggest. The photo is slightly tilted, which provides an added feel that you're trapped, pushing to get out. Very well done.
Exposure, focus, DOF, is right on. This is strictly a compositional photo. The technical aspects are minor and are secondary to the strong composition.
I'm sorry to see this scored so low. I think it is underrated. I'd be interested in seeing a discussion on this.