World in a Room - Start!

Below are the bare-bones beginnings of the World in a Room project in which two characters (one a stop-motion puppet and the other a cg model) interact through a door connecting two rooms.

In the story boards so far I have decided that there is already pre-existing conflict between both characters. The puppet is clearly frustrated while the cg model implies he is fed up with the other character.

I wanted the cg character to eventually approach the door to resolve the conflict in a silly way or reveal that the origin of the conflict was something silly or unexpected but currently I'm drawing a blank as to what it could be.

Will update further after feedback.