Opulent Art Nouveau interior, intricately patterned walls, sinuous lines, flowing organic forms, warm golden lighting, ornate metalwork, stained glass windows, majestic chandeliers, crystal droplets, soft warm glows, ambient illumination, 3/4 composition, shallow depth of field, warm color palette, luxurious fabrics, velvet drapes, carved wooden furniture, elegant curves, whimsical decorative accents, natural materials, earthy tones, sophisticated ambiance.