This is interesting. It may be just good cropping, but I think that this image is incredibly well composed. The subject is perfectly centered while the over all composition follows the rule of thirds. Bravo.
I am making two passes on this Challenge. I will vote on your photo then return later(before voting is over) to comment on what I like and dislike about your shot. You can take the comments however you wish and I will try not to be mean. Just don't take it the wrong way.
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I would like it better if you zoomed in a lttle more on this dark of a subject.