Ads for international calling app

I'm looking to create ads for a new international calling app that will be displayed on social media. My target audience is families who want an easy way to stay in contact with loved ones living outside of their home country. The type of ad I'm looking to create is an image ad that will capture the attention of those families and demonstrate how our app delivers an unfailing and reliable international phone connection. The ads should be creative and engaging to encourage users to try out our app.