Useful art therapy at Coloring-for-Kids.com: Allosaurus Coloring Page (difficult) – black and white coloring book for kids to download and play free online. Coloring instills a sense of style, because young artists will choose and combine colors themselves. The movements train the hand for writing, develop fine motor skills. A young artist will be able to create a personal collection of finished works and share the beauty with friends! Creative Commons Attribution-NonCommercial 4.0 License. Author of the work: Persimmons Studio.