Vibrant Teacher's Embrace

Create a portrait of a male Caucasian teacher in a warm, inviting classroom setting. He has short, neatly combed brown hair, gentle blue eyes, and a friendly, approachable smile that conveys enthusiasm for teaching. His facial features are soft yet defined, with a light dusting of freckles across his nose. The lighting is soft and natural, streaming in from a large window, casting a warm glow on his face and highlighting the chalkboard filled with colorful diagrams behind him. He wears a smart-casual outfit: a light blue button-up shirt and a dark cardigan, exuding professionalism and approachability. The composition focuses on a medium close-up, capturing his engaging expression and the educational environment. Use a painterly style reminiscent of Impressionism, emphasizing warmth and vibrancy, with a slight bokeh effect to soften the background. Render in high resolution for clarity and detail.