CMS multi-image gallery masonry


I need help. I created a CMS with gallery multi-image for CMS collection pages.
I added my collection list into the page and linked the source to gallery multi-image.
I get all the images, but I want to make them now on a Masonry style. I found example but it’s made from an collection of images. I want to get the multi-image from the gallery multi images.

Here is my webflow link :

Thank you so much for the help


Here is my public share link: LINK
(how to access public share link)