Prompt
Generate an image of a British abolitionist and writer from the late 18th and early 19th centuries, specifically depicting Thomas Clarkson in a realistic style, sitting at a desk with papers and a quill, wearing attire consistent with the era, such as a waistcoat and coat, with a determined expression, reflecting his significant contributions to the abolition of the slave trade, in the style of a formal portrait from the 1800s.