Riga Art Nouveau building, grandiose, ornate façade, intricate stone carvings, flowing organic lines, sinuous curves, asymmetrical composition, vibrant turquoise, emerald green, and amber hues, majestic entrance with ornate metalwork doors, stained glass windows, grand staircase, sweeping archways, ornate balconies, lush greenery, blooming flowers, elegant lanterns, misty morning atmosphere, warm golden lighting, cinematic depth of field.