The first poster represent the biggest star as the communist authority threatening the mass with a gun and wearing a executioner mask.
The second poster represent the chinese characters meaning "Justice". I thought the second character looks like a human holding his hands up so the first character could threat him with a gun.
The third is an executioner mask made in China. This represent the fact that china is the country that murder the most their people, so there must be loads of executioners masks to sell.