Prompt
                                        
                                            Generate a realistic portrait of Arthur B. McDonald, a middle-aged Canadian physicist with a warm smile, wearing a suit and standing in front of a subtle background that hints at his work in physics, possibly with some symbolic representation of neutrinos or a nod to the Sudbury Neutrino Observatory. Capture his likeness with attention to detail, conveying a sense of accomplishment and pride in his Nobel Prize-winning work.