Luxurious Art Nouveau dining hall, ornate chandeliers, flowing organic lines, sinuous curves, intricate metalwork, stained glass windows, warm golden lighting, soft diffused natural light, high ceilings, grand archways, opulent furnishings, velvet drapes, polished wooden floors, elegant candelabras, floral patterns, curved banquettes, intimate seating areas, 1/2 composition, shallow depth of field, warm color palette, realistic textures.