Grand staircase, ornate railings, flowing curves, organic forms, sinuous lines, intricate metalwork, bronze details, golden accents, velvet upholstery, luxurious fabrics, rich wood tones, polished marble floors, dramatic lighting, warm ambiance, soft shadows, high ceilings, sweeping archways, fluid transitions, Art Nouveau patterns, botanical motifs, naturalistic ornaments, elegant proportions, refined craftsmanship, sophisticated design.