high-resolution image of a "Triskell" (Triskelion) symbol with three interlocked spirals featuring Celtic design elements and intricate knotwork. Use earth tones (greens, browns, golds) and subtle metallic accents (bronze, gold). Background: textured parchment or stone-like with ancient Celtic patterns. Ensure spirals are symmetrical with subtle 3D shadowing. Soft, ambient lighting for texture depth, creating a mystical, ancient atmosphere. Centered symbol, clean and weathered.