Generate Golden Retriever Studio Portraits

Create a photorealistic portrait of a person with an animal: Aspect ratio: 4:5 vertical. Scene: high-end portrait studio with a warm gray backdrop, soft floor shadow, and clean editorial styling. Subject: the person seated beside a calm golden retriever, wearing a refined casual blazer and plain shirt. Action and gaze: relaxed portrait, face toward camera, dog settled close beside the person. Composition: waist-up framing, eye-level, simple studio composition with both faces clearly visible. Lighting: large softbox key light, gentle fill, natural catchlights, realistic skin and fur texture. Details: dog fur, blazer weave, subtle backdrop gradient, natural color balance. Text: no in-image text. Constraints: no watermark, no extra text, no logos, realistic human and animal anatomy, natural pose, no heavy retouching.