Prompt
Create a portrait of Sir Marc Isambard Brunel, a 18th-19th century French-British engineer and inventor, depicted in a dignified and realistic style, wearing attire typical of the era, with a subtle background hinting at his notable achievements, such as a faint image of a tunnel or a shipyard, and holding a pair of compasses or a similar tool, symbolizing his profession, with a serious and intelligent expression, in a formal, oil-on-canvas style.
