Lord Raglan,
Beautiful work -- those first 3 new pics of yours truly do look like E/B Battery RHA, trying to "Save the Guns" at Maiwand!
All of your terrain looks greatl, but I especially love your bridge -- which reminds me of a drawing of a bridge across the Kabul River c.1878 from the Illustrated London News.
EDIT (12.13.20): Found the drawing I was thinking of...