Prompt
                                        
                                            Generate a realistic portrait of Michael Aris, a middle-aged British historian and academic, with a gentle and introspective expression, sitting in a traditional Oxford college setting, surrounded by books and papers related to Tibetan and Bhutanese studies, wearing a pair of glasses and a warm, earth-toned sweater, with a subtle hint of a smile, in a style reminiscent of a formal photograph from the late 20th century.