hyper realistic cinematic portrait of an aggressive medium-sized dog, front view, mouth wide open mid-bark, sharp teeth fully visible, intense angry eyes staring at the camera, dark studio background, dramatic low-key lighting, strong contrast on the face, saliva flying out of the mouth as droplets frozen in the air, subtle motion blur on the saliva and muzzle to suggest movement, ultra detailed fur texture, wet nose and gums, menacing expression, studio photography, 4k