Currently struggling with my image layout

I’m working on wrapping up my tribute page and I want to reorganize the images to give them space in between them. However, every time I add a photo it clings right onto the photo above it. How would I solve this issue?

CodePen page:

You could always add a class to the images, like:

.img-space {
  padding: 50px;

Or you could do it in a relevant already existing class.