A towering, ancient forest deity known as a Leshy, standing in a dark, misty woodland of Skellige. The creature has a body made of gnarled, dark wood and decaying bark, with long vine-like limbs ending in sharp wooden claws. Its head is a bleached, massive white deer skull with giant, intimidating black antlers decorated with small bird skulls and tattered rags. Several crows are perched on its antlers and shoulders. Eerie glowing blue eyes visible within the skull's sockets. Dark fantasy aesthetic, moody cinematic lighting, hyper-detailed textures of moss, bone, and ancient wood. 8k resolution, atmospheric fog.