Luminocity: Hole ideas

I started thinking about another idea for our projections - a hole. There are many paths to explore and I think we should be trying out a variety of ideas for our showreels in the end. The idea is just a circle on the wall, then we can use Maya to create different environments inside the hole. The could act as a window to another world, or a tunnel with objects inside it, water falling out of it and even people could be filmed and composited inside the hole. There could even be multiple circles in the picture. Nick has a good idea about having the circles interacting with each other. Below are my initial drawings: