Cinematic close up portrait of a fearful boy survivor

Ultra-realistic cinematic portrait of a young boy, the last human on Earth, wearing a protective hooded survival suit and a heavy respirator mask resting around his neck. Pale skin, light blond hair, piercing blue eyes filled with fear and quiet determination. Subtle dirt and moisture on the face, post-apocalyptic atmosphere. Minimal background, soft desaturated colors, cold and muted color palette. Dramatic yet gentle lighting, shallow depth of field, centered composition, film poster style, emotional sci-fi realism, extremely detailed skin texture, high realism, 8k, cinematic photograph