Even the car is from the past. Nice work. I like this still life a lot. There may be limited color enough to go ahead and make it B/W, but that's something to experiment with. I like the perspective here, looking thorugh the big wheel and the machinery.
I find this confusing - not in the sense of any meaning, or appropriateness for the challenge, but compositionally - my eye keeps being pulled around the image, from the harrow to the car to the hub of that wheel and round again. It's distracting for me.
Are you sure this wan't taken 60 years ago? It looks great! My only suggestion would be to add some more color to the photo, or take more out. We're in a washe dout midde ground that doens't seem to be intentional - especially notided in the green of the trees. Just a thought, I wonder what thsi pic would look like in b/w or sepia. BTW, are those potty sheds in the background?