The picture shows how increasing taxes, it made it harder for poor people to get food and supplies. The traveler sees how many poor people are struggling. Not only that but there was a shortage on bread. So people would fight for bread.
This picture represents the Boston Tea Party, In which American Colonist threw tea out ships because they were angry and upset that they were being taxed on their tea.
Not everyone liked the king because he was a bad man and would tax the people.