Ah man, I love this idea. Very original. Nothing in the image is very clear though. I'm sure this is a result of having to long exposures in low light.
Great idea. The trial version of neat image might help clean up the noise from the long exposure. But, the noise does not detract from the fact that this is a very good idea.
Great idea marred by mediocre execution. The pic needs a "main" bit of lighting, possibly with a flash, after the PTL is executed. This will allow the "normal" part to have better exposure.