this reminds me of a shot i took..."similarity in diversity"...i like that the theme caries into the shop. You'll have a tough time keeping people's attention with the busy background.
I like the natural ease in which this photo can be viewed. The comp is strong with subjects placed strategically in the frame with a nice implied leading line. Good eye to see this...good luck in the challenge.
I'm sorry but this shot seems staged. It may not be, but the overall feel of the image is so so. I think the biggest distraction is the truck behind them. I know that you're using the curved line of the benches, but with the truck there, my eye doesn't follow the curve, it b-lines right to the truck. Experiment with other angles if you have something of that size in the background of the shot.