Imagens

Banco de imagens:
Grátis:
https://unsplash.com/
http://www.freeimages.com/
http://www.freepixels.com/
http://pixabay.com/
http://www.pexels.com/
http://freebiesbug.com/
http://www.flaticon.com/
https://br.freepik.com/

Sem fundo:
https://www.picpng.com/
https://www.gratispng.com/
https://pt.pngtree.com/
http://www.pngpix.com/
https://br.freepik.com/
https://create.vista.com/pt/
www.pngall.com/

Formas orgânicas:
app.haikei.app

Remoção de fundo:
erase.bg/pt

Ilustrações:
drawkit.io
humaaans.com
storyset.com
glazestock.com
manypixels.co/gallery
undraw.co
icons8.com/illustrations