The most likely impact of seeing the image would be: "By confirming the repressive actions of the British government, the engraving would increase the desire to rebel against it."
Engravings and images circulated at the time often served to galvanize public opinion and stir emotions. If the image depicted oppressive actions by British forces, it would likely resonate with the colonists' grievances and encourage them to unite against British rule. Such visual representations were powerful tools for propaganda, reinforcing existing sentiments of resistance and motivating action toward rebellion.