Art Nouveau building facade, ornate details, flowing organic lines, sinuous curves, whiplash motifs, luxurious materials, iridescent glass, stained glass windows, Tiffany lamps, bronze accents, copper cladding, verdigris patina, soft warm lighting, atmospheric perspective, shallow depth of field, 1/2 composition, intimate scale, ornate ironwork, floral patterns, peacock-inspired colors, emerald green, sapphire blue, amethyst purple, golden yellow, rich brown, intricate mosaics.