Discover a 1950s Isometric Map of a Fictional Town

A colorful, isometric map illustration of a fictional communist-era mountain town, drawn in a 1950s retro Eastern European visual style. Use a hand-colored ink line art approach, with detailed buildings, roads, and landscape. The perspective is bird's-eye, angled from the bottom-left. The town layout includes the following zones: Top center: a large terraced quarry carved into a mountain, with roads winding up its slope. A tall radio transmitter tower stands on top. Left of the quarry: a hospital complex with two tall, boxy modernist towers. Far top-left: a lake with forested shore and several small vacation cottages. Below the lake: a green hill with scattered wooden cabins (small huts). Middle of the image: a dense historic center with tight red-roof buildings and narrow streets. Two large Gothic-style churches with towers are located at the core. Bottom-left: a neighborhood of large concrete panel housing blocks arranged in a grid layout. Bottom edge: a suburban area with small gable-roof houses and narrow streets. Right of the historic center: a wide river curves through the valley. A bridge crosses the river and connects to a train station zone at the bottom-right. Beside the train station, against the forested slope, is a small path leading to a hidden bunker entrance (underground shelter). Throughout the map, draw roads, trees, small parks, and a tram or trolleybus line along the edge of the panelák district. The color palette should be soft and retro, with green hills, blue river, orange-red roofs, and grey industrial zones.