Design a teens coloring page that captures the majestic sight of a dinosaur migration. Showcase a group of Velociraptors and Pachycephalosaurus moving in harmony across a vast plain, dotted with prehistoric flora. The focus should be on the simplicity of design, characterized by clean, minimalistic lines. The line art, simple in its nature, should take up the entire page, serving as a canvas for budding artists. --ar 17:22 --v 5.2 --style raw