for insertion as a full page slide on a white background like the old organisational diagram without significant blurring and using a non-white background.

Can someone assist by either recreating the organisational diagram

https://www.dropbox.com/s/vsb6oq8qgmkjlfx/at-large-org-diagram.png in Google Slides

OR create a large enough image with a white background

You can edit the At-Large Organisational diagram at
https://docs.google.com/presentation/d/1r5OYV0QzoHbGVXkLFLNKVC42NlrJO6cDA_H7rc110WM/edit?usp=sharing

(no Google signin needed)