J.Robert Oppenheimer, Vincent Van Gogh style, male, 40s, serious facial expression, sharp jawline, messy brown hair, thick eyebrows, glasses, worn denim shirt, faded blue jeans, leather belt, standing, holding a lit cigar, nostalgic gaze, scenic countryside, rolling hills, cypress trees, sunset sky, warm orange light, dramatic clouds, impressionist brushstrokes, heavy texture, vibrant colors.