Thanks for the feedback, very helpful. I have added a couple of revisions to #1.
John -- I have many of this tractor but that night the stars aligned (in the form of clouds). Great stuff on your home page.
Arlen -- Yes. I have complaints about the grass seed heads being distracting, too.
Jeremy, Matt -- There isn't much detail in the foreground, a crop might help. It could be a little greener and brighter.
Pollarda -- a crunchy Reichman sky might work here, I'll see...
Larry -- that balance lasted just a few seconds, the front was miles away but moved very fast.