This is nice, Nice use of the Rape seed as a backdrop. when I looked at the shot first I immediately though the space to the left of the tree/ruin was not addition to the composition at all and that if your turned right a degree or two it would serve to improve the composition a lot but then on second glance I note the tracks in the wheat which balance the composition better IMO. My only problem is that the tracks are not visible enough to create the balance. I wonder could you burn them a little just to bring them out and as I say balance the comp?.
The sky looks a little red on my screen, maybe tone down the reds in the sky a smidgeon or two? …..but I would get a second opinion on that as I think my screen needs to be calibrated!