Could not get layered mask to work, tried several times.

nor could video clip be duplicated to create mask, had to separately 

Animation did work, I guess it’s the iPad memory or lack of power & speed

256MB with 2TB iCloud storage / 4th generation 

 

None the less, learned a lot and plan to take further steps in mastering this particular technique 

 

Planning on a museum trip with my students and shoot videos there, then animate them.