Dark romantic fantasy in the style of Sarah J. Maas aesthetic, cinematic vertical composition 9:16, vast throne room carved from translucent black ice, towering obsidian pillars veined with frozen blue light, a solitary jagged crystal throne atop a staircase of frost-covered skulls — volumetric lighting, god rays cutting through snow haze, bioluminescent glow from beneath the ice floor, chiaroscuro with deep black shadows and cold blue highlights, lens flare from an unseen light source, particles of frost floating in the air, epic and haunting atmosphere, photorealistic 8K, octane render, cinematic color grading — teal and shadow, depth of field blur on edges, sharp focus on throne
