In this photo there are things I enjoy and a few things that formally could possibly be changed. The idea and representation of irrigation is interesting, but is it purely a representation of the concept, or is there a more in depth idea you wish to put forth? Also, with the composition, I really enjoy the tree above, splitting the negative space of the sky, but I seem to find myself continually coming back to the center of the photograph, where the tractor is. The colors on the tractor draw us to it as the focus or main subject matter, and it is placed more or less in the direct center. I find myself looking at it and then continuing up the tree, but then having lost the right side of the photo. I like the idea here though and maybe a little cropping could improve the composition.