post-apocalyptic setting, Fallout 3, companions, detailed characters, Dogmeat at Scrapyard, Fawkes in Vault 87, Star Paladin Cross at the Citadel, Butch DeLoria in Rivet City, Sergeant RL-3 from Tinker Joe, Charon in Underworld, Clover at Paradise Falls, Jericho in Megaton, desolate landscapes, ruined buildings, dystopian atmosphere, ambient lighting, dramatic shadows, 3/4 composition, worn textures, rusted metal, scattered debris, overgrown vegetation, muted color palette, dynamic poses, action-ready stances, atmospheric perspective, environmental storytelling.