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."
This response reflects the historical context in which engravings and illustrations were often used as propaganda to mobilize public sentiment. If the engraving depicted the British government in a harsh or oppressive manner, it would resonate with the grievances many colonists felt towards British rule, thereby fueling anti-British sentiments and motivating them toward rebellion.