Ok problem solved. I'm Apple and iPhone guy but this is how it's generally done regardless of OS.
You need to post the DIRECT link to the photo, still using the img bbcode. Your direct link is this: https://cdn.cp.adobe.io/content/2/dcx/c73113a1-885c-4b1f-afb6-f4ce63a6b899/rendition/preview.jpg/version/1/format/jpg/dimension/width/size/1200
To get that link you need to right-click your original adobe link etc and select "open image in new window" or "copy image address" or similar language. Then put that link in between the Img bbcode.