This image uses attractive, seemingly successful students and school colors to make the school seem desirable for future students.
I would talk about the choice of students how they are arranged, how they look, etc. to explain why people would want to go to the school. I’d also talk about how they are seemingly successful based on the shirts they are wearing. This would be a great ad to hang in high schools, magazines and newspapers to target high school seniors who are picking schools and parents who are helping their kids find schools.