This fun and creative coloring page features an imaginative line of cars made of barrels and machines! The barrels are colored red, white and blue, while the machines are green and blue in color. There is a sequence to the cars as the barrels are lined up in front and the machines come afterwards. In order to bring out the colors and create a vibrant image, I suggest using bright shades for the barrels and different hues for the machines to make them stand out. For instance, use a bright red for the barrels, a darker blue for the machines, and gradient colors for the other cars. With a bit of creativity and imagination, this coloring page will be sure to bring your art to life!