Pynas focused on small history paintings. These works often depicted biblical scenes like the stories of Jacob or Lot. He preferred painting on copper plates or small wooden panels. His approach involved placing small figures within expansive natural settings. He used a palette of earthy colours. The figures in his work are usually active. They move through the scene rather than posing. This creates a sense of narrative movement.

Modern collectors find value in the precise scale of these works. The compositions are centred and direct. They fit well in domestic spaces. His art represents a specific moment in Dutch history before the dominance of large-scale baroque canvases. Owning a print of his work allows for an appreciation of early seventeenth-century narrative techniques. The focus on natural elements and human interaction remains relevant to those interested in classical storytelling.