Improve your mood with Coloring-for-Adults.com. Frightened mouse coloring page – modern online coloring by numbers and book for download and print for adults. Coloring an illustration with many elements improves mood, distracting from everyday worries. The magic created can be kept as a keepsake or shared with friends for inspiration. Permission: Creative Commons Attribution-NonCommercial 4.0 License. Artist: Persimmons Studio.