Luxurious Art Nouveau dining room, ornate plasterwork, sinuous lines, flowing curves, rich wood paneling, velvet drapes, beaded chandeliers, elegant wall treatments, hand-painted murals, intricate stenciling, gilded accents, metallic leaf patterns, embossed leather upholstery, soft warm lighting, shallow depth of field, 1/2 composition, intimate atmosphere, realistic textures, ambient occlusion.