This would work better if it wasn't blurry. And I don't like the border, it doesn't really add anything for me. I do, however, really like the contrast; it makes the lines function really well.
Not sure I care for the soft focus on this shot or not. I keep debating it with myself. I like the softness on the ground, but long for detail in the tunnel wall.
I like this a lot...very enigmatic, mysterious. I would have liked the figure to have a "little" more definition or regular shape. It's almost too unrealistic. Reminds me of a teenager with the baggy pants down around the knees, which I'm not sure you intended. Again, though, I do like it.