epic fantasy illustration of a majestic holy female seraph floating in dark stormy heaven, long wavy golden blonde hair, serene closed eyes, multiple enormous layered white feathered wings fully spread, glowing golden spiked ring halo behind head, ornate white-and-gold filigree armor gown with long flowing train, behind her back a dozen stacked concentric glowing golden magic circles with intricate rotating rune sigils and geometric summoning arrays, from the arrays erupt a massive barrage of elemental light beams firing outward in every direction — orange fireballs, blue lightning bolts, cyan water ribbons, emerald nature light vines, violet arcane rays, white holy pillars, hundreds of glowing projectiles and energy trails, explosive dynamic action, volumetric god rays, floating golden feathers, swirling clouds, dark dramatic background, hyper-detailed 8k, octane render, cinematic lighting, epic key visual