Minor: Lost Boy - Art Room Turnaround Toon Renders

I have done some tests with the new Toon Shader in Arnold, I don't like the way that the outline disappears when the camera turns around and there is nothing behind the object, I am going to do more tests to see how to rectify this.

Art Room Turnaround with colour and cotour 3 (Converted) from Graeme Daly on Vimeo.