Prompt
Generate a realistic portrait of a 19th-century British military engineer, specifically a Lieutenant-Colonel in the Royal Engineers, dressed in formal military attire, with a backdrop that subtly suggests his notable achievement, the Rideau Canal, perhaps with a small, discreet image of a canal or a construction site in the background, but focusing primarily on the man; the style should be akin to early 19th-century British military portraiture, emphasizing realism and detail.
