This is a neat picture of an old tractor. I think you composed this shot just right. It seems to be a bit overexposed on the top of the tractor but you might have done that intentionally.
I like this photo a lot. I do think this is one of the photos that shows why it would be great if the challenges could use larger photos, I think this could be a much better photo if you were allowed to submit it at say 1024x768. After the voting is all done I would love to see what this looked like before being resized.
I don't like the way the front and the back of the tractor are clipped out of the frame, and the red triangle sign is distracting from the setting. What is you went to the other side to change the background (like the cannon in front of the house)