I’ve been working on ways to translate the concept of a pixel to painting. The latest method is to use a brushstroke to represents the pixel with a flat brush.

Pixel as defined by Wikipedia 

“In digital imaging, a pixel, pel,[1] dots, or picture element[2] is a physical point in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen.”