Detailed hidden object illustration with flat cartoon drawing, fine black contours and densely filled composition. Bright, evenly distributed primary colours (red, yellow, blue, green), hardly any shadows, clear line look. Precise outline of Switzerland, completely filled with many small scenes from engineering projects: tunnel construction in the mountains, railway lines and stations, bridges and viaducts, hydroelectric power stations and dams, civil engineering, energy and industrial plants, construction sites with engineers and machines. Many figures, lively, playful, hand-drawn. See more