Dialogue :
https://www.shutterstock.com/de/image-vector/chatbot-concept-man-chatting-chat-bot-581231746?src=pwyDtuhcncHpxvidoWcaxg-1-13
Smartphone : http://www.pixeden.com/psd-mock-up-templates/3d-view-iphone-6-psd-vector-mockup
Background :
https://www.shutterstock.com/de/image-photo/abstract-beautiful-blurred-shop-background-interior-547963288?src=APW72LGczklNd0qGUthfJg-2-12
Share image background :
https://www.shutterstock.com/de/image-illustration/abstract-futuristic-illustration-polygonal-surface-low-429002356?src=DQBaUgCH7ynBiD652gWYNA-3-2