A mysterious female sorcerer touched by ancient moon spirits and frozen cosmic powers, wandering across arctic ruins beneath endless aurora light. She has impossibly pale skin, long white hair flowing like snow, and luminous blue-violet eyes reflecting distant stars and moons. She wears elegant layered robes of silver, grey, and deep blue trimmed with white fur and embroidered with celestial nordic symbols. Cold magical light radiates softly around her while floating runic sigils orbit her body like constellations. Ancient frozen ruins rise from the snow beneath a vast star-filled northern sky. Atmospheric nordic fantasy illustration, celestial lighting, cinematic snow landscape, mystical realism, painterly detail, dreamlike composition