Elle Fanning in a prehistoric setting, embodying a solitary woman from the Stone Age. She is adorned in a primal loin cloth, her hair wild and untamed, and her skin is marked with tribal tattoos. Clutching a primitive spear, she stands at the entrance of a shadowy cave, her eyes wide with a mix of awe and fear. The scene is depicted in ultra-realistic detail, rendered in 8k using Unreal Engine technology. The atmosphere carries the dramatic flair and dynamic style reminiscent of Boris Vallejo and Frank Frazetta, capturing the raw intensity and mystique of a bygone era.