I like the composition and the shot's simplicity - it really adds to the overall midwest farmland theme. My only nitpick would be that the colors seem a little drab (okay I guess that could support the midwest farmland theme too - lol), but I think a little burning might make them a little deeper and more interesting. :-) Great shot.
Nice simple shot with contrast. I'd love to see a single object in the foreground as a resting place for the eye. A plow, a cow, maybe a farm implement's silhouette? Just a thought.
Th colours are lovely and the exposure is right on. You might want to crop some from the bottom to prevent the horizon line from splitting the image almost exactly in half. Also, the centre of interest (the farm) is really too small in the frame to function fully effectively as the focal point of the image.