The images face.jpg/face.png are used under the Creative Commons 2.0 License, 
which can be found here:

https://creativecommons.org/licenses/by/2.0/

The image was found on Flickr under the following URL:

https://flic.kr/p/x1TgvF

and was provided by user Jane Kostenko (layma1999): 

https://www.flickr.com/photos/133533365@N06/

The "medium" version of the image was downloaded on 21/07/2016 and was modified
only via reencoding to png.

The intended use of this image is for testing purposes only.
