post-apocalyptic setting, Fallout game series, best companion, loyal dog, German Shepherd, Dogmeat, wearing bandana, leather armor, standing beside player character, male survivor, rugged appearance, leather jacket, armed with plasma rifle, desolate urban ruins, broken buildings, scattered debris, overgrown vegetation, dim sunlight, ambient occlusion, atmospheric perspective, dynamic shadows, 3/4 view, action pose, dusty atmosphere, concept art style, detailed textures, high resolution.