This looks like it has alot of character, but I would personally have preferred a tighter crop by cutting out the right 1/3 of the frame. That would've made your subjects, the interesting object that they are carting around, and the booths far more prominent.
Something about the angle here is bothering me. It appears that things are tilting right. If you lined up with the grids on the right side as it appears might be the case, you would have been better off aligning with the building instead. :) It's advanced, so this could have been straightened. I like the subject matter, but think a crop of some of the right and a bit off the top, leaving the open window may help this. This would produce more of a rule of thirds composition for your subject matter (the people) and perhaps add a bit more interest. ;) Would love to see this revisited (if possible) at a different time of day.