a young Nikolaj Coster-Waldau with white hair, a white tunic and a black vest, fantasy art, digital painting, by Heise Jinyao, Heise-Lian Yan Fang, feimo, Richard Taddei, trending on ArtStation, concept art, cgsociety, octane render, trending on artstation, artstationHD, artstationHQ, unreal engine, 8k