Butterfly Couture Gown Sketches

Create high-fashion couture sketches for an "Aria of Frost" and "Lumina Papilio" collection, featuring ethereal, butterfly-inspired evening gowns. The designs should showcase sleek mermaid silhouettes, architectural ruffled sleeves that mimic lepidoptera wings, and intricate silver filigree wirework. Use a luxurious color palette of iridescent amethyst, frozen lilac, and deep cerulean blue accented with metallic gold and silver threads. The mood board should include technical details like fabric swatches of silk-satin, silver mesh, and seed pearl clusters, presented in a professional atelier style with elegant calligraphy and butterfly reference anatomy.