I would like to ask a signature document made by Meitu Xiu Xiu: a big picture with three small squares on it (all three pictures are part of that big picture).

I'm not sure about the name of the signature file, but if it's a tutorial, you can click below to try it.

1. Select a larger image. This is nonsense.

Cut out the points of this big picture and choose the parts you like to save.

3 Repeat the above steps, paying attention to selecting different parts in three times.

4 Open one of the thumbnails.

5 Click on the puzzle and add two other small pictures.

Set the background of the puzzle to this big picture.

7 modify the orientation of the puzzle, and you're done!