Photo sources

Samsung Galaxy S6 PSD Mock-Up
Source: http://emske.com
Picture: http://emske.com/samsung-galaxy-s6-psd-mock-up/

Samsung Galaxy S6 in Hand MockUp
Source: http://graphicburger.com/
Picture: http://graphicburger.com/samsung-galaxy-s6-in-hand-mockup/

Icon Set „Scientifics Study“, designed by Freepik
Author: http://www.flaticon.com/authors/freepik
Picture: http://www.flaticon.com/packs/scientifics-study