8K, masterpiece, ultra high-definition macro photography, ultra-detailed, Nikon D850, 105mm f/2.8 macro lens, soft diffused natural light, digital painting with photographic realism, hyperrealistic depiction of a wild hyena in an aggressive stance, mouth wide open exposing jagged yellow teeth and a slick pink tongue, eyes narrowed with intense predatory focus, richly detailed fur in layered shades of brown, beige, and black—short and long strands adding tactile depth, raised hackles emphasizing tension, large rounded ears with dark inner texture and tufts of fur, sharp claws extended in dynamic motion, positioned in a rugged savannah scene with cracked ochre earth, scattered tufts of dry grass, thorny acacia shrubs and sparse desert vegetation, warm ambient light casting soft shadows, dust particles subtly suspended in air, harmonious blend of realism and painterly composition, mood is wild, raw, and powerfully visceral.