Hi Jim,
Good post on describing the f-stop and focal lengths.
This is an aspect that I breifly considered (qualified with a few C&Gs in photography in the late 80s), but discounted due to the contrast in the ground topography, ie: very grassy in the far-ground to none at all in the foreground?
Agree that to compose such an image would require a bit of work, but not impossible. Fully accept that to criticise is the easier part, and that only those invloved would be able to provide full confirmation. But also viewing a photo such as this on its own, is like an archaeologist concluding on a solitary piece of excavated evidence without being able to contextualise it.
Wustenfuchs has commented on the validity of the weapons, an aspect that I'll defer to others with more experience for comment, but may be critical.