A majestic haute couture fashion editorial captures a celestial swan with feathers of cascading silver moonlight gliding across a mirror-still cosmic lake, wearing a gown woven from solidified comet tail threads and crystallized stardust that flows into elegant feather patterns, a crown of swirling aurora filaments rests upon its head, dramatic rim lighting from a hidden nebula creates intense pearl white and soft lavender glow, mood of ethereal grace and celestial wonder, color palette of luminous moonbeam silver, deep cosmic navy, soft aurora teal, and diamond accents, hyper-detailed feather fabric physics with cascading stardust particle streams, 8K resolution, editorial fashion photography meets mythological fantasy art