The graveyard of rusted robots. Expressing rust: Rust isn't just a single color; blending shades of brown, reddish-brown, ochre, and dark gray will create a natural look. Adding thicker rust effects to corners and seams will make it appear more realistic. A sense of aging: Avoid perfectly straight lines, and incorporate dents, cracks, chipped surfaces, and exposed wiring. Additionally, weaving grass and ivy into the scene will amplify the feeling of long-term abandonment. Background tips: To convey a graveyard atmosphere, don't just depict the ground as plain dirt — include elements like metal shards, screws, and bones in the silhouettes. A sunset sky will add emotional depth, while a cloudy sky will create an eerie mood. Color composition: Unify the entire scene with muted tones, and adding just one bright color will make the main subject stand out. For example, a robot with only one glowing eye leaves a strong impression. Easy-to-use reference information: For reference materials on robots and post-apocalyptic background art, municipal exhibition documents include background art information such as robots from *Laputa* and ruined Laputa, which serve as hints for constructing a worldview. (city.takamatsu.kagawa.jp) Also, in critiques of background artworks, adding metallic textures and traces of everyday life is said to increase persuasiveness, making it easy to apply to depictions of rusted machinery. (cgworld.jp)