Prompt
Create a realistic portrait of Johann Friedrich Gmelin, a middle-aged man from the 18th century, with a gentle expression, wearing attire typical of a German professor of that era, sitting in a study surrounded by books, botanical specimens, and entomological artifacts, with a subtle background hinting at his connection to the University of Göttingen and his work in natural history, particularly in taxonomy and the 13th edition of Systema Naturae.