I would first create an automation that will log my listing into a database when a new listing is created. For ones that are already created I would create an automation to enter those listings into the database or if there aren’t too many listing just enter them in manually.
I will have the database log the listing ID, url to photo link, and a status field indicating if the listing was “Posted” or “Not Posted”. From there I will setup a scheduled scenario that will pull any listings in my database that has a status field equal to “Not Posted” and limit the results to however many listing I want it to post for that time.
Then you have have AI analyze the image and post it like you have in your scenario.
Hope this helps!