Prompt
Generate a realistic portrait of William Greenleaf Eliot, an American Unitarian minister, educator, and philanthropist, in a 19th-century style. Depict him as a middle-aged man with a gentle expression, wearing formal attire typical of his time, including a suit, tie, and glasses. He should be seated in a study or library setting, surrounded by books and possibly a few artifacts related to his work, such as a minister's collar or a document referencing Washington University in St. Louis, which he founded. Incorporate subtle hints of his intellectual and philanthropic pursuits.