In the center of the page, two young Pachycephalosaurus stand on their strong back legs, leaning in to bump their thick skulls together. Look closely at the impact point where small rocks and swirling dust clouds burst outward, showing just how much force their playful head-butt has. Their bodies have textured skin and long tails that help them keep their balance during the game.

The background features a simple but effective prehistoric landscape. You will find rolling hills in the distance and a few scattered plants and rocks on the ground. The sparse vegetation suggests a dry, rocky environment where these dinosaurs might have roamed. Every element, from the tiny pebbles to the tufts of grass, adds more detail for you to fill with color.

Since these are cartoon dinosaurs, you have a lot of freedom with your color choices. You might want to use a different shade for the bony domes on their heads to make them stand out. Earthy greens, browns, and tans work well for a realistic look, but bright purples or oranges can make the scene feel more like an animated adventure.

For the dust clouds and flying rocks, try using light, sweeping strokes with a grey or light brown crayon to give them a sense of movement. You can also add some shading under the dinosaurs' feet to ground them in the scene. The hills in the background can be colored in lighter shades to create a sense of distance, making the main characters pop forward even more.