Although I have little to no experience with toning, I wonder if a brown tone would have aided this. Composition-wise, it is strong and vibrant. Maybe even color would have aided in separating the tones. This is one of the drawbacks of monochrome: you need to separate the tonal values which can unduly merge with monochrome. But, you did nothing wrong here, it is just that I wish for more. I could not have done better. - David Lyga
BSD, I'm not smart about the equipment & mainly noticed the lower discs & though it was some kind of disc harrow. The area was mostly dairy farm or logging in the past. I would guess alot of planting was for winter silage for the mooing maids of milk.
David - I went back & forth on sepia myself (or its electric version). I scan everything as a color neg - which yields a look like overbaked sepia that got dipped in cheetos. Sometimes it looks quite handsome. Color would have been interesting - particularly w/ the blazing sun highlighting parts of the foliage. As always, your kind thoughts are always good medicine.
Pbro - thank you. I seem to have developed a fixation on placing wheel/cog upon wheel/cog & chasing a depth of layers of moving parts. Having watched alot of machinery, the symphony of motion always fascinated me.