great find, alleyways are always fun to photograph
i know it's not in the critique section, and i hope you don't mind be playing around with your shot, but i edited your shot a little. i don't normally do that here, but figured why not
i flipped it horizontally so the ladders point to the right instead of left, then i basically darkened the bricks on the outside of the alley, then lightened the center where your eyes goes to, and also lightened the ladders so it guides you more into the center inside that window. i think it flows a little smoother that way.