The stop-motion, painted-frame animations of Poland's Witold Giersz are eye-opening, as I'm sure you'll agree when you view the artist's stunning, impressionistic Kon (Horse), made in 1967.
Witold Giersz : Kon from Carlos Jara on Vimeo.
This film (and others) can be seen on YouTube and here at the National Audiovisual Institute's videotheque. See as many of Giersz's films as you can; they all are marvelous.
Giersz was honored earlier this year at the Kinoteka Polish Film Festival in London. Don't miss this interview with the master filmmaker: "Wild horses: Witold Giersz and the art of animation" (British Film Institute, March 6, 2013).
Giersz's most recent release, some four years in the making, is Signum; a 15-minute animated cave painting inspired by the art at Lascaux and Altamira, it debuted at Kinoteka.