Krita

 

Tool:	Krita
Description:	Krita is a professional FREE and open source painting program. It is made by artists that want to see affordable art tools for everyone. -Concept art -Texture and matte painters -Illustrations and comics
Platform:	Linux, MAC, Windows
Download:	https://krita.org/en/download/krita-desktop/
Review:	https://youtu.be/RGEXN0DXNHg
Ease of Use: Scale of 1 to 5; 1 being easiest, 5 being hardest	3
Costs:	Free