Prompt
Generate a realistic portrait of a 19th-century British male poet, essayist, and biographer, sitting in a rustic, natural setting, possibly surrounded by books and papers, wearing attire typical of the era, with a contemplative expression, in the style of a classic oil painting, capturing the essence of Hartley Coleridge, son of Samuel Taylor Coleridge, in his mature age, around 40-50 years old.