Cropping changes what an image communicates. Showing a face draws attention to the person, while showing hands shaping an object draws attention to the craft. When a wide image becomes a narrow tile, decide which parts must remain visible for readers to understand the same subject.
Keep the work in view.
A wide photograph of a craftsperson may include both a face and the hands doing the work. A narrow tile can remove the hands and change the story into a portrait. Choosing the crop deliberately preserves the part of the image that explains the craft. The drawn example makes that choice visible. One frame selects the head; another selects the hands and the object on the bench. Neither is universally correct. If the page is about the making process, the second contains evidence the first has removed.
Treat each display shape as an editorial decision. Use a different crop when necessary, and avoid placing essential marks or text near vulnerable edges. Move the center of the crop when necessary to preserve what the image communicates. A crop can also erase scale, setting, or the connection between two people. Decide what the picture needs to show before choosing the center of the crop. The caption and nearby words can add useful context, but they should not have to explain away an image that no longer shows the subject.
Put it into practice.
Name the action, subject, or relationship the image must communicate. Try the actual wide and narrow display shapes around it. Adjust the crop or select a better source image when that meaning disappears; use a separate crop where one composition cannot serve both.
What must remain in the frame for the image to mean the same thing?