I really like the composition and balance in this photo. The grouping of the people is just right as all faces are visible showing the fruits of their labor. However, This is not criticism of an excellent photo. But, I find the processing is lacking in some contrast or whites thus creating a dullish look. Was it the actual lighting condition that give this look or is there room to work with the whites and black in order to give it some more pop? None the less, its a great shot.