What Effect Is this?

I got this video that i wanted to recreate but i don't know what is the effect name called or how to reproduce it, can you help me to identify the effect and the steps how to reproduce it, below is the screen shoot of the effect that i wanted to recreate 

The effect is the white halo thing that i circle, and if it wasn't clear enough here is the video link 
https://youtu.be/y3g2Ck2gLGQ?si=l3tK7Pq2q-WLtFD4&t=485 at the time stamp 8:06