Composition: Perhaps you needed to take 2 paces back (to position the large bale in the front a bit more to the 1/3 from teh right hand side) and stood up about a foot (to give more seperation between the top of the bale and the horizon).
Contrast: perhaps the toning is too strong to allow some contrast between the various shades. This also takes away from teh potential imapct of the headland. I think there is probably more happening in the sky than the toning allows. Perhaps this is a long-winded way of saying that I don’t think the toning works!
I agree with Brian about the toning perhaps a straight B&W would work better
I do like the comp and perhaps more detail could be brought out in the sky