Photograph the Control Next to the Exploratory Sample

Give the comparison a reference point

Put an unchanged control beside the exploratory sample when you photograph it. The pair helps a future reviewer see the intended difference without relying only on a memory of the original surface.

Describe observation before conclusion

Write what is visible under the same viewing conditions and keep the note narrow. A single sample can inform the next question, but it does not establish a general material guarantee. Browse /updates/ for more sample-review practices.