A man with a german shepherd dog, highly detailed portrait, photorealistic

a man with a german shepherd dog, highly detailed portrait, photorealistic, 8k, ultra-detailed, sharp focus, physically-based rendering, professional, vivid colors, intricate details, exquisite lighting, chiaroscuro, striking composition, dramatic shadows, powerful gaze, rugged features, loyal companion, outdoor setting, lush greenery, warm tones, majestic presence