Hi, as requested, here is an indepth critique of your submission.
First Impression - the most important one: I like it, it fits the challenge well and is well executed. Consequently, I gave it a high score.
Composition: You've used a really good composition to put your subject in a strong area of the image. However, I believe having a "secondary" subject out of focus in the foreground may be a bit distracting. He is also in a strong compositional area and is taking away from your main subject.
Subject: Subject is strong, but as I mentioned is handicapped by the placement of the guy in the foreground.
Technical (Colour, focus, and light): Focus: Good, perhaps a bit more USM in post.
Colour: You have a nice gradation of greyscales here and your b+w treatment is good. I see black blacks and white whites, so you pretty much nailed it.
Light: You have a nice play of light in the background and it's all well exposed.
To grow its vote?: Two things. Compostion, as I've stated before. And, this isn't anything you could control... but I believe the voters were looking for isolation in a larger crowd.
Summary: Overall, good work and it got a respectable score. Keep up the good work.
I really like how the people are situated in this shot. The eye jumps in an unusual zig-zag trajectory. I wish there was less DOF to isolate the guy in the right a little better.
great shot with great DOF...for composition's sake, would have like to have seen more of the guy on the left (or not at all)...he seems to throw things off balance a bit. Lighting is great