Phone mockups used in the template are from Freepik premium (about $70/year) category and they require a premium subscription which costs about $70/year
- Iphone X front view: https://www.freepik.com/premium-psd/front-view-clay-iphone-x-mockup_2871437.htm#term=iphone%20x&page=2&position=12 
- Iphone X isometric : https://www.freepik.com/premium-psd/isometric-minimal-clay-iphone-x-presentation-mockup_2871432.htm#term=iphone%20x&page=3&position=2 
- Iphone X horizontal: http://uiconstock.com/free-iphone-x-mockup-2-angles/ 

But if you search the Internet a little longer you will also find free mockups like:
- https://www.anthonyboyd.graphics/mockups/minimal-clay-iphone-x-presentation-mockup-set
- https://uxplanet.org/free-iphone-x-mockups-psd-sketch-4c455d74b2c3

Illustration used for the header background is from Freepik and required Premium Subscription: https://www.freepik.com/premium-vector/website-template-with-geometric-shape-background_2673548.htm
