Feels wrong to have class names in the yaml file.  Can you update list_html so that it works like 'promoted' 
promoted:
        - url: /en/payday-loans
          text: Payday loans - don’t be tempted by fast cash.
          image: home-promoted-pdl.jpg
        - url: /en/articles/how-to-improve-your-credit-rating
          text: Do you know your credit score? Find out why it matters.
          image: home-promoted-1.jpg