Great idea with an intersting subjects. Great diagonals and capture of all the dust. I would love to see the view from the other side where the expression on the faces would be visable. The backs of these guys is not where the story is.
This image seems a bit underexposed. I wonder if it would be a more appealing image if you had shot it from the other direction so we could see their faces. I'm not find the back view that interesting