Show featured image on geotag posts map

Using the google map plugin, I have the following shortcode on a page: [agm_gwp_geocoded_posts]. You can see the page here: https://www.hoppen********niek.nl/projecten/ I want to show featured image with the post title, for example how I have here: https://www.hopp********rstechniek.nl/projecten

How can I do that?