Examine two 18th-century portraits of Madonna and Child side by side. Undergoing vastly different conservation treatments, Our Lady of Guidance (Nuestra Señora de Guía) by Venezuelan artist Juan Pedro López has a yellowed varnish and visually distracting overpaint, while Virgen de Belém (Our Lady of Bethlehem) by an unknown Peruvian artist requires significant structural work to address past campaigns to repair long tears in the canvas.