Useful art therapy at Coloring-for-Kids.com: Happy Dragon coloring page is an online game and printable coloring book that never ends. On the page, you can choose coloring tools (paints, brush, fill, eraser) or color according to samples from illustrators. To make it more interesting, click on the easel and select game modes. The finished drawing of a young artist is convenient to save or send to loved ones through the site. Creative Commons Attribution-NonCommercial 4.0 License. Author of the work: Persimmons Studio.