https://freerangestock.com/
https://www.imagefree.com/
https://www.pexels.com/
http://www.bigfoto.com/
https://www.freemediagoo.com/
https://burst.shopify.com/
https://picjumbo.com/
https://unsplash.com/
https://commons.wikimedia.org/wiki/Main_Page
http://compfight.com/
https://stockphotos.io/
https://skitterphoto.com/
http://thepatternlibrary.com/ - фоны