Krita is a free and open source KDE program for sketching and painting, offering an end–to–end solution for creating digital painting files from scratch by masters.
Fields of painting that Krita explicitly supports are concept art, creation of comics and textures for rendering.
Modelled on existing real-world painting materials and workflows, Krita supports creative working by getting out of the way and with snappy response.
You can download Krita for free (and get the latest news and improvements) right now at Krita.org krita.org, and the documentation can be found on docs.krita.org!
If you know of any other art on DeviantArt that used Krita, please use the "Submit a Fave" option on the group homepage to let us know!