A towering fantasy troll with rugged, weathered skin and intricate textures stands amidst an ancient forest, illuminated by dappled sunlight filtering through the dense canopy. This photorealistic creation is rendered with octane and unreal engine, highlighting hyper detailed features such as the glistening dew on its moss-covered shoulders and the deep creases of its expressive face. The atmosphere is enhanced by a vibrant hdr effect, capturing the lush greens and earthy browns of the environment. The scene is composed in a dramatic 9:16 aspect ratio, emphasizing the troll's imposing presence in its mystical surroundings.