use intro image in related articles module for Jooma 3.4

I would like to get the intro images to show in the related articles module. I've made an override /my template/html/mod_related_items/default.php but I can't find a code that works. Ideally I would love to have the related items displayed in like a 4 x 2 articles (not as a list) and with the intro image and title clicable.

I'm a newbie, please help :-) You can find my webpage here if that will help.

https://www.grøhttp://ift.tt/1EjTKcT

Thanks in advance :-)