English Language School Flyer

I need help creating the perfect flyer for my English language school. It should be in A4 format and sent to me as a PDF. As for graphics and images, I'm not sure yet, but I could use some advice if possible. I'm looking for an eye-catching design that will attract students to the school. It would be great if the colors in the flyer could reflect the welcoming atmosphere of the school. Any additional ideas or input into what images and graphics could be used would be much appreciated.