Nice. I like it. I like the depth of field and the sharpness of the vehicle. The blurred weeds in the foreground are a tiny bit distracting, but overall I love the shot. 6
Subject is good. The centred composition doesn't do it justice. A low perspective,also using the rule of thirds and include the sky and some surroundings to give it some scale and this would score higher.No vote just comments.
I've seen a lot of pics of tractors/cars/vehicles/machines alone in a field in this challenge, but I think you figured out how to do it right. Great use of dof, great framing, has emotion, and I like it a lot.