If I am not mistaken, the white star you’re referring is in the 0:51 sec of the video.
It can be done by creating a star shape by using the shape tool. Most of the glow is achieve by adding Glow effect in the star layer. To achieve the “echo” look of the star, you can use offset animation or use the Echo effect.
The multicolor outline in 3:33 sec can be achieve (there are other ways too) by rotoscoping the man and duplicating it several times, then adding a gradient map over it. Change the distance opacity and add glow effect if you like.