Prompt
Create a realistic portrait of Luis von Ahn, a middle-aged Guatemalan computer scientist and entrepreneur, with a warm and approachable demeanor, sitting in front of a subtle background that hints at his work in AI and computer science, such as a faint image of a computer screen or coding symbols, wearing a casual yet professional outfit, with a gentle smile, reflecting his achievements and contributions to technology, including CAPTCHA, reCAPTCHA, and Duolingo.