Here's an example of a short and sweet (literally) retargeting ad from Winc (formerly known as Club W). This ad is displayed on the right column of Facebook specifically for users who browse wine-related content online. When your ad caters to people who you know would be interested, modeling the product the way Winc does above can be a home run for your brand.
It's visual. The picture alone is worth a thousand words about how much fun this concert would be. Not only is it on the beach, it was also taken on a gorgeous day and the stage looks amazing. Also, it clearly represents what to expect during the event, and it catches the eye as someone scrolls through their News Feed. (The beautiful ocean water definitely helps.) Facebook Marketing For Individuals - How to succeed With Facebook Marketing