The most accurate response regarding the differences in the presentations of the Civil War in "A Horseman and the Sky" and The Death of Reynolds is:
The story deals with a soldier's feelings about the war, while the drawing does not.
This distinction highlights how "A Horseman and the Sky" focuses on an individual's internal conflict and emotional experience during the war, whereas the drawing may depict the war in a more objective or factual manner without delving into personal emotions.