Trying to take an image attachment from a CRM record and display it on a Creator Page

Trying to take an image attachment from a CRM record and display it on a Creator Page

Hi all, I'm pretty good with deluge scripting and HTML, but less familiar with invokeURL calls
I seem to be able to get the attachment IDs, but not sure how to get and display the actual image in HTML.
I'm located in Australia and so I think it uses accounts.zoho.com.au rather than zohoapis.com
I have been using the following link as a guide: https://www.zoho.com/crm/developer/docs/api/v3/download-image.html

Thanks!