Darkrai is an imposing Pokemon with a black body, red eyes and a small exclamation mark-shaped protuberance on its head. Two thin, red horn-like extensions sprout from the back of its head, and a thin, red tail extends from its backside. Its arms and legs are both long and black, and two dark-red bumps can be seen on its chest. To create an even more striking image in your coloring page, I suggest covering the red eyes and protuberance with a bright, contrasting color such as yellow or purple, to make them stand out against the black. For the rest of its body, choose a bold, vibrant shade for the horns and tail, and use lighter shades for its arms and legs. Finish off by bringing out the unique characteristics of its face with a lighter grey for its cheeks and a darker grey for the ridges on its forehead.