プレハブモジュール式公衆トイレ：同一システムの異なる組み合わせ

Design a prefabricated toilet system where a single module is combined in different ways for different sites, and show three configurations together in one image. Render one identical base module — a compact volume with a fully fitted interior, a single door and a high-level vent — repeated as: a single unit on a small path-side plot; a pair set back to back with a shared service spine; and a group of five arranged in an L around an open external wash court. Keep the module visually identical in every configuration, in a durable composite panel with a strong consistent colour and a simple flat roof. Detail the connecting elements as a separate lightweight kit — a canopy, a wash trough, a screen wall — in a contrasting material so the system's logic is legible: fixed modules plus variable connectors. Show the transport and installation implied by lifting lugs at the roof corners and a level plinth beneath each. Include people using each configuration. Photorealistic, systematic, strong colour, comparative composition.