It could be a great shot, but I see two major problems.
[*] First, it's way too overexposed. The light rays coming in wash things out and are distracting.
[*] Secondly, there's a lot of 'crap' in the way of the subject: tractors. The posts and weeds steal the attention from the tractors. Maybe make them out of focus or change your angle.
I don't mean to be harsh on you... Your photo has good potential. Just go back and try again. 

