A spherical object with fine knitting patterns containing a futuristic city. The futuristic city is silver, gold, blue, and gray. An aerial city. Bridges span the canyon, and futuristic cars traverse them. Rough sketch: general arrangement of the canyon, bridge, and buildings. Place the vanishing point deep in the canyon. Perspective lines: organize the bridge and buildings along the perspective. Emphasize depth with a diagonal bridge. Large shapes: sketch the silhouettes of buildings and cars. Prioritize silhouettes with simple solids. Light and shadow: decide the direction of light and apply shading. Darken the canyon interior and lighten the top. Color and light: add neon and lighting as highlights. Use high-chroma colors sparingly. A world of mirrors.