Portrait of Martin Luther with authentic historical characteristics

Portrait of Martin Luther with authentic historical characteristics. He is dressed in a black robe and a period hat, With short hair and a neatly trimmed beard. Luther has a serious and thoughtful expression, reflecting his posture as a theologian and reformer. The background could be a simple office environment or a study room, with ancient books and scrolls around him. Lighting should be soft, highlighting his face and traditional attire, capturing the dignity and impact of his figure."