Kaia the Huldra.

A medium shot, 3/4 view of a female Skogsrå from Norse mythology standing amidst a serene forest during the evening. The character has long green hair flowing over her shoulders and falling between her eyes, paired with deep black eyes, pointy ears, and small horns protruding from her head. She is dressed in a simple white dress and a matching white skirt, featuring a medium chest and bare feet, with a cow tail extending from her lower back. She stands still on the soft grass, looking directly at the viewer with a mysterious expression, her hands resting naturally at her sides. The setting is a dense fantasy forest at twilight, where ancient trees with thick trunks surround her and a soft, dim light filters through the leaves. The overall visual style is a (sumi-e:1.5) inspired anime illustration, characterized by elegant ink-like brushwork and a clean composition. The color palette is dominated by deep greens and earthy tones, with the stark white of her attire providing a focal point against the moody, evening atmosphere.