The perspectives really make this photograph exceptional. There is the one between the workers, between the flat field and the hills, the row of cut grain, and the standing clump of grain in the foreground against the rest of the grain. It's obviously harvest time and the golden overall color reinforces it. "Threshing" is very well done.
Sorry but I don't see nothing funny in this picture. The lighting is nice and I like how the line of cut wheat moves the attention from one farmer to the other, but there is not much interaction between these two people. The camera angle also very common for a snap-shot.