Green Screen in a diorama

So, let´s say students have made a scene using a shoebox - here´s a way to kick it up a notch (er maybe more like 10 notches):

https://twitter.com/cindygo75/status/1121581082795753472?s=21

They used the DoInk app thusly:
https://www.youtube.com/watch?v=LLtFZeWewko

Started a model of a house built with nothing but materials from the forest:

Now, I just need:
-green paper
-students
-time

Also, maybe this t-shirt ;)