Preview the grid before you lock

Pull the last six tiles and set the new ones in front. Look for repeated crops, a row of all type, or a face colliding with a face. This takes five minutes and saves a week of "why does the profile look off."

Do it before client approval if the client cares about the profile. Showing them only a single file asks them to imagine the row. They will imagine wrong, then blame the live result.

The grid fills in the order you publish, which may be the reverse of the order you designed a puzzle. If you designed a picture that spans tiles, write the publish sequence down and test that sequence. One delay breaks the picture.

Most agencies should not promise spanning art unless they control the timing tightly. Single tiles that can survive any neighbor are more honest.

A desktop collage with gaps and labels is not the phone. Use a three-column preview with the real crops. The grid planner on this site lets you drop in up to twelve images, drag them, and export a preview.

Export the preview into the approval if the row itself needs a yes. Then lock the posts, not the collage.

A timely post inserted at the last minute shoves the row. Look again before you hit schedule. The preview from Monday can be a lie by Thursday.

If the insert ruins a planned sequence, move the sequence. Do not hope nobody will scroll.