Elegant Art Nouveau staircase, ornate railings, flowing organic lines, curved silhouettes, intricate metalwork, sinuous banisters, ornamental newel posts, richly patterned carpets, warm golden lighting, polished wooden steps, decorative iron balusters, whimsical botanical motifs, sensual curves, luxurious materials, dramatic verticality, shallow depth of field, 1/1 composition, realistic textures, ambient occlusion.