Shape

I have been experimenting with different shapes in flash. This torus shape was what i was going to use for the tunnel illusion, i created it in flash its just half a torus in contours coming towards the view. its a two dimensional representation of a three dimensional torus. using these contours i have created i want to have all the animated imagery to follow these to outline the shape. The problem with trying to create three dimensional shapes within a two dimensional medium is that the perspective never quite seems right. I would prefer to play upon this rather then trying to represent a three dimensional shapes this way.