How do I repeat complex image editing action for every image using Shortcuts on macOS?

I'm trying to build a shortcut using Shortcuts that takes an bunch of images, applies a LUT to them, overlays the non-edited image on top of it again at 20% opacity, auto-crops them, optimize the files for web and then saves them. This is done using Pixelmator Pro shortcuts. Everything works correctly except for the fact that the image 1 in the list gets overlayed on top of all images. Every single image should be treated as its own instance: in other words, unedited image 34 should be overlayed at 20% opacity over the LUT-edited image 34. Can someone with knowledge on how to use Apple Shortcuts send a screenshot on how to build a shortcut that solves this? The screenshots below are in Swedish.

This results in image 1 being overlayed on top of all other images.

This gives the same, wrong result.