One of my image folders is called "Pictures Demanding a Story," and this photograph is going right into it. Look at the half-circular swirl of the river meander. The stone walls bound it and echo it each other. The bush on the right at the end of the curve rises into a different energy. Oh, and that glimpse of the horizontal sea way off on the horizon. All the elements together proclaim a place of power, maybe of ritual.
The scene could be used literally as the place to which a lonely child retreats. It might be a fiercely defended fairy stronghold. From it, imagination might build a larger landscape of river, ditch, and walls: a city. In any case one has to applaud Jonathan Wilkins for the combination of sweeping energy and timeless calm it suggests.