Prompt
Generate an image of Friedrich Engels, a German philosopher, sociologist, journalist, and businessman, in a realistic style. He should be depicted as a middle-aged man with a serious expression, wearing 19th-century attire, possibly with a suit and a hat. The background should be a subtle representation of Manchester or London, reflecting his residences and areas of influence. The color palette should be muted, with earth tones dominating, to evoke a sense of the era. Include a few subtle hints at his literary contributions, such as a book or a newspaper in the background, but avoid making them the focal point. The overall mood should be contemplative, capturing his role as a foundational figure in Marxist theory and his influence on socialism and communism.