ZD, Photograph of a 3D paper train sculpture, with a classic red and black color scheme, riding on a track against a gray background. The train has a streamlined, boxy design with smokestacks and wheels. Its windows are square and detailed with white outlines. The sculpture is in a diagonal view, showing its motion. The wheels are turning (imagined in the still paper form), and the smoke is represented by soft gray paper. The lighting is bright and industrial, highlighting the precise folds of the paper. The overall style is modern and minimalist, with a focus on transportation and nostalgia.