Compositing is a subjective action. You need to think about what you want from the effect and then you have to composite it to your taste. One thing I would recommend, though, is adding some glow. In After Effects, go to Effects, locate the Glow option and then add it to the overall scene using an adjustment layer. Another thing that would be nice is to add some motion blur to the scene. Go to Effects and find Pixel Motion Blur to force some blur to be added to the scene.