In the middle of the coloring sheet is a huge, vibrant green dinosaur. He is a fearsome creature with a large head, filled with sharp white teeth. His arms and legs are quite stubby, adding to his distinct look. He is also wearing a red collar with a fancy golden nametag featuring the word "Rex".
When it comes to coloring this fantastic creature, you could go big; a bright yellow for the body, red for the collar and tag, and maybe even some bright blue around the eyes and mouth. Alternatively, you could go for a more natural look and use varying shades of green and grey to blend this dino into his grassy environment. If you choose to go with the bold colors, make sure to keep his face pale green and not too bright so his features stay visible!