how to make an list of newest posts showing only the featured images

I try to use the newest posts block to show a grid of posts with featured images only. On you can see how far I am so far. Unfortunatedly I seem only to be able te get rid of the titles of the posts by maken the textcolor white (with extra css added to the block) but this seems a silly way to do….. Who knows an easy way to make a list of posts wich displays only the feautured images??

Thanks for any help

• This topic was modified 3 years, 3 months ago by James Huff. Reason: redundant link removed

The page I need help with: [log in to see the link]