Intricate Art Nouveau architecture, sinuous lines, flowing curves, organic forms, ornate details, luxurious materials, rich jewel-toned colors, emerald green, sapphire blue, amethyst purple, golden yellow, copper accents, ornate ironwork, stained glass windows, grand staircase, opulent chandeliers, velvet drapes, intricate mosaics, whimsical floral patterns, soft warm lighting, atmospheric perspective, 1/2 composition, realistic textures, ambient occlusion.