Unfortunately, if you’re going to be using Pods, you need a basic understanding of PHP or you need to make friends with a programmer who can help you.
The easiest way to describe this is to put the code into your Pods page. Images get stored in an array, so using Pods templates necessitates the use of a helper, and that’s just going to add to the complexity.
Let’s assume your pod is called ‘my_pod’ and both of those columns are in there.
$Record=newPod('my_pod');// Define a new instance of my_pod
$Record->findRecords('t.id DESC',-1);// Load all the records in my_pod into memory
while($Record->fetchRecord()):// Loop through those records one by one
if($Record->get_field('event_img_lg.ID')):// If there is no image, skip to endif
$img_detail=wp_get_attachment_image_src($Record->get_field('event_img_lg.ID'),'large');// WordPress function to prepare the image for display