Harmony and relaxation with Coloring-for-Adults.com: Owl Antistress coloring page – an interesting anti-stress game for download and online drawing for adults. The illustrators reflected the subtlest shades of emotions in each color combination of the elements of the image. The finished harmonious and slightly magical picture can be saved electronically or shared on social networks with best friends and family. Permission: Creative Commons Attribution-NonCommercial 4.0 License. Artist: Persimmons Studio.