Doesn't really do much for me, but that's just personal taste.
I understand the low-key, silhouette thing, but I wonder if it isn't too much. There is so little information here that the viewer struggles to even identify the subject.
Also the yellow-green tint, was that done on purpose? I don't see where that aspect really adds. Perhaps B+W instead?
One last specific, I would clone out the little puff of smoke that's in the middle. I think it serves as a focal point for the eye, and distracts the viewer.