Haha, good one. Yes, the last one.
Firstly, I don't personally see any sharpness issues as-is. Besides the horse portrIt, they are all sort of snapshottish anyways. The tracktor I didn't even see infill you mentioned it. I think the story being told here wouldn't sway to far from your vision if it was cropped somewhere between just the right of the fence post and to the left of the purple tree. Turn it into a high contrast black and white to subdue the flat lighting and I think it would look good. UWA are sometimes tough isolating subject in this sort of scene.