Combining files from structure field entries?

I have a structure field which includes the option to upload files:

  type: structure
      type: files

How can I create a collection of all files/images uploaded to this field? I need to perform an operation with each file and at the moment I’m solving it with a nested foreach-loop:

<?php foreach($myStructureField as $structure): 
        foreach($images as $image): ?>
          <!-- Do stuff with the image… -->
  <?php endforeach;
      endforeach ?>

I’d like to avoid this and work with a single collection of all files.

$image_array = $page->myStructureField()->toStructure()->pluck('images');
$images = new Files();
foreach ($image_array as $field) {

Thank you