Many photo monitoring workflows attempt to summarize "pre" and "post" conditions, or a timeline of conditions. It would be helpful to have a widget that makes this kind of presentation easier to pull off.
Examples: select a plot point, that has related records for 'pretreatment' and 'post-treatment' visits. The widget presents a photo from each layer and the user can swipe between them to compare. select a plot point, with multiple related records. photos from all the related records are sorted by visit date and displayed along a timeline, and the user can click on them to expand.