I make my own vision board (also called a Treasure Map or Creativity Collage) . The collage images was torn out from various magazine and pasted on the poster board.
The process of getting those images :
Go through the magazines and cut out the images and begin to lay on the board.
As you lay the pictures on the board, you’ll get a sense how the board should be laid out.
For instance, the lady with the laptop and the travel suit case.
You may try to make one yourself.