Prompt
Create a realistic portrait of Regina McCarthy, a middle-aged American woman with a professional demeanor, wearing a formal outfit, possibly with a subtle background hinting at her environmental work, such as a faint image of the Earth or a leafy pattern, in a style that reflects her career as an environmental health and air quality expert, specifically during her tenure as Administrator of the Environmental Protection Agency or White House National Climate Advisor, capturing her determination and expertise in the field.