Maybe not a real mural outside but I think it rather looks like one at the exhibition in our local art gallery. It is named MASSMESSMESSAGE 2.0 made by artist "Bente Wilms".
She made all the drawings of her Whatsapp communications using the pictures friends are sending each other. With this she wants to show the change in the culture of images / photo culture. A change that is mainly caused by the use of the mobile telephone, internet and the social media. Photos containing only information specific to a particular call or time. Photos in communication.
Linking to "Monday Mural"