The woman waving her hand in the center makes it seem almost as if she's getting the spiral swirling. This is what makes me give an already good photo a perfect score -- a ten!
love the repetitive circles in your composition -- they unify the image and make it interesting to look at over and over -- one of my favorites this challenge
The rail in the lower left draws too much attention. I think that the composition would have been better if you cropped it out, and preferably, if you'd taken a different standpoint.
I like the way you included the swirling design in the floor tile within your crop. The position of the onlookers gives a pleasing symmetry to the composition and I think you nailed this shot at the right moment.
Particularly effective in meeting this challenge...dramatic and with a story to be told while adhering to photographic integrity. Well done.
While this is an appealing image, in my mind it's not truly a "candid" shot; more of an environmental shot. This is a personal aesthetic bias, not a reflection on the quality of your picture.
Intriguing viewpoint and clearly candid. Mono helps the strength of the pattern in the shot, but I suppose the subject is just not that interesting for me to return to.