Add the same small crop marker to each sample photo when you want to review a fine feature. A consistent area of interest helps separate an observed visual difference from changes caused by a different camera distance or framing.
Compare one view at a time
Place the marked crops next to the full photos and keep the source files named by revision. Describe only what is visible in those images, and flag anything that needs another sample rather than translating one image into a material or performance claim.
For additional documentation prompts, browse /updates/ before planning the next sample.