This Apatosaurus coloring page has a huge green body with bright yellow spots all over. Its long neck curves gracefully downward and its long tail trails right behind it. Two small, stubby arms stand out from its sides and its big feet are planted firmly on the ground. To bring this image to life, consider using a range of shades of greens and yellows to fill in the body, giving the dinosaur a subtle sense of texture and dimension. Accentuate the spots with a few brighter yellows, and use a darker green for the shadows. A light yellow or cream could be used for the highlights, which will give the dinosaur a lovely and natural glow. Don't forget to add white for the claws and other highlights!