Animated movie with a beggar or other poor pilgrim, a desert and little child

I’m looking for an animated movie for my friend. It had a dark “climate”; it was terrifying. One scene keeps coming to mind—the main character, very emaciated, possibly a poor man or a beggar, set off on a journey. I think he had a child with him, whom he was carrying on his shoulders.

The animation was very distinctive—nothing like the colorful Disney or Pixar style; it wasn’t a colorful film, and I’m not even sure if it was intended for children. From that scene, I recall black, yellow, and shades of gray.

Possible themes:

- religious leitmotiff

- desert

- wandering

- bread as a source of life

- saving a child

- begging

Thank you in advance for any help. My original thread:
https://www.reddit.com/r/whatsthemoviecalled/comments/1rvix4r/comment/oati9ki/