Dan, my late father in law , a farmer used to walk in just this way with his hands clasped behind him, a body worn with fatigue but no doubt nursing a sense of satisfaction at what has been achieved.I love the way this "vignette" is framed in the widow aperture, giving a sense of observation with out intrusion or confrontation.
This whole series is for me absolutely redolent of Classic reportage with the Leica.

Ian