A lot of people already have iPads mounted as interfaces. What is missing is the right software (always on display or proximity wake or stuff like that)
Dude. Did you even read what I wrote? PNG is bad for photos. Your example is a photo.
Go ahead and try the same with a screenshot with text and menus showing.
Have you tried to rename the albums to the existing name? It should merge them.
If one can not be merged, go to check the fotos and unselect all of them for this „person“.
Then wait a night and see if they were added to the correct ones.