Luxurious Art Nouveau auditorium, ornate golden details, flowing organic lines, soft warm lighting, rich velvet curtains, intricately patterned carpets, ornamental metalwork, majestic stage designs, lavish furnishings, opulent chandeliers, jewel-toned walls, emerald green accents, sapphire blue hues, amber warm tones, creamy whites, subtle gradient effects, dramatic high ceilings, grandiose architectural details.