Harmony and relaxation with Coloring-for-Adults.com: Charming little 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. Save the created mood for the whole day or a wonderful evening. Inspiration! Permission: Creative Commons Attribution-NonCommercial 4.0 License. Artist: Persimmons Studio.