coloring page illustration of a construction site with houses on the cliff sides. The image should depict a deep excavation with rugged earth textures, houses perched along the edge of the cliff, and trees adding detail to the landscape. Include intricate line work for texture and depth in the cliff sides, the structures of the houses, and the trees. The style should resemble realistic architectural sketches, but without any color or shading, focusing solely on clean, sharp lines suitable for coloring --ar 70:99