For me it is the string (I do not know what it is) that he is holding and that you have beautifully placed in the center of the image that creates the dynamic - the movement - the "meaning" of the image. It could be seen in many ways but the relationship of the people to this object is central and ambiguously meaningful
A very intriguing shot: is it a combination of modern and antique arts? The viewers around make this question yet more meaningful, as they look also quite intrigued.