Detailed complex fantasy art style, ultra-sharp focus, bright and contrasting colors, portrait of Gollum crouching on a mossy rock in the middle of a river, very clear and detailed light hazel almond-shaped eyes with perfectly round pupils, eyes looking up to the right, slightly open mouth, two very detailed hands resting on the front of the rock, small pointed and twisted canines, well-lit rounded face conveying fear, ancient forest setting