survivor, skill book, journal, project zomboid, focused expression, reading, sitting, makeshift shelter, urban ruins, overgrown vegetation, tattered clothing, bandaged arm, improvised backpack, dim lighting, sunset, survival skills, learning, determination, post-apocalyptic environment, scattered supplies, cautious, 3/4 view, gritty texture, worn-out materials, soft shadows, ambient occlusion, detailed environment, immersive atmosphere.