Such beautiful people standing in solidarity #reclaimyoursovereignty

The green and yellow copies of the Open Letter "Letter of Demand from the Australian People" on the left were distributed outside Australian Parliament House yesterday afternoon, and the white copy was posted in Telegram.

If these are all copies of the same dcument, could anyone please explain why the signatures section on all three documents look so different?

Source of white document @OzTrucksToCanberraUpdates/107