3D Design and Editing

I am creating a 3D room in After Effects to show how this project will work when set up in real life. I am using different images and video to construct the room. There will be a walk through for us to see what will happen when the user enters the room and lights a cigarette and if the user tries to face away from the wall.
This is one of the videos I am going to present on the final submission date. The video is too big to upload here.