post-apocalyptic female mechanic, mid 20s to early 30s, tough and resourceful appearance, messy tied-back hair, dirt and grease on face and arms, wearing rugged torn mechanic coveralls reinforced with patches and makeshift repairs, tool belt with scavenged tools, holding a wrench or makeshift repair device, standing beside a heavily modified scrap-built vehicle, dusty ruined workshop or desert outpost, broken metal parts and improvised equipment around, harsh sunlight or smoky ambient light, gritty cinematic realism, detailed skin pores, sweat and dust textures, ultra-realistic photography, RAW high-resolution look, survival atmosphere