It's a jungle out there! Looks like a place you just want to stay out of. That said, I think the photo has done it's job. Well done image and the b&w strengthens the point.
I agree with @webfoot. b&w usually works best (at least for me) when there's a lot of contrast. I did a b&w challenge last July - an entire month of b&w pics in my extras album. It taught me a lot.