Elegant Art Nouveau building facade, sinuous lines, flowing curves, organic forms, ornate metalwork, stained glass windows, intricate mosaics, turquoise blues, emerald greens, amber yellows, rich reds, luxurious gold accents, natural stone walls, whimsical florals, botanical motifs, dramatic archways, grand entrance doors, warm afternoon lighting, soft shadows, shallow depth of field, 2/3 composition, ornate details, realistic textures, ambient occlusion.