Ox depicts the powerful movement of Tibetan yaks through concise yet highly expressive brushwork. Wu Zuoren employs layered tonal variations of ink to capture the animals’ weight, strength, and quiet vitality, creating a composition that conveys dynamic momentum while maintaining a measured rhythmic balance.

Beyond its vivid portrayal of the natural world, the work evokes the resilient spirit and enduring character associated with the peoples of the plateau. Through this synthesis of observation and expressive abstraction, Wu Zuoren demonstrates his distinctive ability to unite Eastern and Western artistic sensibilities, interpreting reality through the poetic language of xieyi (freehand expression).