Create an Instagram-worthy photo of a seductive dark elf girl in cosplay. Focus on her sharp, elven features, glowing eyes, and long silver or dark hair. She is dressed in intricate, form-fitting armor with elegant dark tones, accented by glowing magical symbols. The armor should highlight her curves and give a powerful, otherworldly presence. Her pose is confident and graceful, with an alluring expression that conveys both mystery and beauty. The setting is a mystical, shadowy forest or a moonlit fantasy realm, with ethereal light creating an enchanting and mysterious atmosphere.