To effectively analyze the painting "Landscape with Classical Ruins and Figures" by Marco Ricci and Sebastiano Ricci, the question that would best help in the analysis phase is:
How did the artists use perspective and orthogonal lines?
This question focuses on the technical aspects of the artwork, allowing for an exploration of how the composition is constructed and how it leads the viewer's eye through the scene. Analyzing perspective and orthogonal lines can reveal important information about the artists' techniques and intentions, contributing to a deeper understanding of the artwork as a whole.