I’d be interested in what you’re working on. For my work, I’ve found hosting the image on my hardriving and “pulling” the image through preview/export is the most optimal approach.
We’ve held several meetups on image managment, e.g., Tinderbox Training Video 12 - Working with media in your TBX files (Part 1), Tinderbox Training Video 13 - Working with media in your TBX files (Part 2)
I’ve also build a template around it: 5Cs TBX Media Libraries and Templates | 5Cs of Knowledge Management