Graphic design for web and social media

Industry: Sports and Fitness
Design details: 3 to 4 different images for Facebook website click ads.
The images can't contain more than 20% text.
Ideas for the visual style: Simple but eye-catching?
Website url: https://www.dnafit.com
Extra notes: We are a fitness genetic testing company currently running a variety of Facebook ads. I need 3 to 4 images designed for a campaign as I need to change the creative (wearing off a bit). Websites to give you an idea what we are looking for: https://www.dnafit.com (our own website)
https://www.23andme.com

We will also be able to send over images we're currently using for out campaign. They're working great but started to show signs of wearing off as the campaign has been running for a while.