Short journal · Original editorial · The honest caption
A reflected patch of colour looks like a separate object.
An image can invite an interpretation without proving it. Begin with visible details, then mark any imagined story as imagined. A careful caption adds context while preserving the uncertainty outside the frame.
Check the wider image before naming what the reflection is.
Do not confuse a tidy description with a useful result. Look at what the next reader or participant can actually do.
Try a question
What would you notice after trying this in one small, real situation?