Opulent Art Nouveau interior, rich jewel-toned walls, emerald green accents, iridescent blues, warm golden lighting, intricate floral patterns, sinuous organic lines, flowing curves, ornate metalwork, stained glass windows, velvet upholstery, carved wooden furniture, luxurious fabrics, soft pastel hues, whimsical illustrations, elegant cursive typography, ornamental plaster ceilings, grand chandeliers, dramatic drapery, romantic ambiance, warm cozy atmosphere, shallow depth of field, 1/2 composition, realistic textures.