This whimsical illustration depicts a stylized map of the Yokohama waterfront, characterized by clean lines, flat colors, and a playful, cartoon-like aesthetic. In the center, a dense cityscape featuring recognizable skyscrapers and a prominent ferris wheel is set against a backdrop of green, patterned trees. The scene is bisected by winding, bright blue waterways that snake through the urban landscape, creating a sense of a harbor city.
Scattered throughout the composition are multiple instances of a cheerful, round orange character named Tanemaru. This mascot, with large eyes and a leaf-sprout on its head, appears in various poses, including floating on the water like a small boat or perched near the edges of the map. The color palette is bright and cheerful, dominated by shades of sky blue, crisp white, forest green, and the vibrant orange of the mascot, all accented with bold black outlines.
The overall style is that of a commemorative tourist map or event graphic. Sparkling star icons are sprinkled across the skyline, adding a sense of magic and celebration to the scenery. In the lower right, the text "YOKOHAMA PORT OPENING 150TH ANNIV." confirms the theme, while the lower left displays the "Y150" event emblem. The artwork is clean and flat, focusing on graphic representation rather than realistic depth, making it appear friendly and accessible.