This poster presents research done during my Summer Research Experiences for Undergraduates (REU) program at the Information Sciences Institute at the University of Southern California. I worked with Professor Emilio Ferrara and Emily Chen to study how the style and composition of protest imagery posted on social media is connected to an account's credibility, political leaning, and network structure. This poster was accepted to the Seventh National Workshop for REU Research in Networking and Systems (REUNS 2021), and it is also listed on the REU website.