The background of the arch of Titus and the movement of the actual arch, as well as the visual aspects using description visual analysis and research. Combine adescription, visual analysis, and research. Interpretations come from the questions raised by looking closely and doing research. They follow up on things that you find interesting. They go beyond the limits of the frame or the pedestal to study the context of the work of art. Sometimes an interpretation is a fine point, and sometimes it is a big discovery, depending on how much writing has been done about your piece in particular. Interpretation is sometimes subtle, but it is endless, so be creative.