Prompt: Create a real-looking portrait of 'Osman Gazi', the founder of the Ottoman Empire, who lived in 2030, with his elegant clothes on a horse and the Turkish flag waving in his hand. The portrait shows Osman Gazi as a young and handsome man, with a beard and a turban. He wears a white shirt, a blue jacket, and a red sash, and holds a sword in his left hand. He rides a black horse, which has a red saddle and a white mane. He holds the Turkish flag in his right hand, which has a white crescent and a star on a red background. The portrait has a futuristic and realistic style, and uses bright and vivid colors. The background shows a cityscape of Istanbul, with skyscrapers, bridges, and mosques. The portrait is a tribute to the founder of the Ottoman Empire, and a vision of his legacy in the modern world.