The composition doesn't do anything for me. There is nothing to lead me through the image, to hold my interest. It seems to be a random snapshot without a lot of thought behind it. Sorry.
I like it, but I think it lacks a strong subject. I get that you might have been going for a "lost in the city" feel, but it's the picture that ends up feeling a bit lost.
The use of black and white was good. Thought it could have been a little clearer, even if it was just on the sidewalk, to give the image one definite well focused area.
It is as if the gentleman at the left has spoted you...perhaps he has or perhaps he was placed there...it does not matter...this is a story...this is beautiful.