a full body shot of a bride viewed from behind in a long dress of pure light, in front of a pristine art nouveau cathedral on a wedding day, a sunlit plaza covered in pastel flowers with flying petals and fireflies, rule of thirds, german romanticism, rembrandt style, elegant, volumetric lighting, highly detailed, artstation, concept art, matte, sharp focus, art by Tom Bagshaw, Alfons Mucha and Greg Rutkowski