Hyper-realistic digital illustration with the luminous,intricate detailing of the skeletal,demonic nun with an ethereal glow emanating from fiery eyes,sharp,blood-streaked teeth and fangs,surrounded by spiked,metallic halo and embellished headpiece,contrasting dark shadows and harsh highlights emphasizing the surreal and eerie textures,the background blurred with floating embers and a golden,ominous ambiance,with intricate bone structures and subtle cracks interwoven into surreal,haunting and intimidatingly fine details permeating through the image.,