Crystal Entity in the Stone Age Dawn

Photorealistic render of a sentient crystal entity in a Stone Age setting. The crystal being is tall and slender, composed of sharp, faceted surfaces that catch and refract torchlight into icy blues and soft purples, with a calm inner glow. It stands in a damp sandstone cave adorned with red ochre cave paintings. The ground is rough with dust, scattered flint tools, bone harpoons, and animal pelts. A small group of hunter-gatherers, dressed in fur and hides, approach cautiously as their torches flicker, casting long shadows. Visible breath in the cold air, and suspended dust motes glowing around the entity. The scene blends ancient humanity with a mysterious crystalline intelligence, captured in cinematic lighting, hyper-realistic textures, realistic skin and fur, rock and crystal reflections, and shallow depth of field to emphasize the entity while still detailing the cave and figures. The mood is awe-inspiring and otherworldly, with a Stone Age atmosphere and a surreal, crystalline presence.