The author of this tutorial is Matthias Schmitt (Luxembourg). He wrote:
"This comic book was developed to celebrate the 10th anniversary of the association “Chiens Guides d'Aveugles au Luxembourg”. We created a comic book helping children to understand the every day problems of visual disabled people. We are publishing the comic book free in 7 different languages. You can download the comic book here.
The comic look of all photos has been done with AKVIS Sketch. We wish all our readers, young and old, fun while reading this comic book, and hope that you all find something interesting in it."
Press to process the image and then press to apply the result (for plug-in).