Opulent Art Nouveau interior, sinuous lines, flowing curves, organic forms, luxurious fabrics, velvet drapes, intricate wood carvings, ornate metalwork, stained glass windows, warm golden lighting, rich jewel tones, emerald green accents, sapphire blue hues, amber yellow highlights, crimson red undertones, natural textures, floral patterns, botanical motifs, whimsical illustrations, dreamy ambiance, soft focus, shallow depth of field, 2/3 composition, intimate atmosphere.