Host your image on a reputable hosting service, such as Google Photos.
Get the Link of your image, by clicking on the Share link and then "Create link" button:
When you get the share link from Google Photos, paste it on this website to get an embed link that you can finally use in instantly - https://www.labnol.org/embed/google/photos/
Step 1 👉 Copy the shared link of the image from the Google photos.
Step 2 👉Paste it under Google Photos, then copy the Direct Image link.
Step 3 👉 Now Insert the direct link in your campaign editor :