Mandelbrot Fractal Zoom + Animated Gradient (recreate)

Hi Friends, I am trying to recreate a similar result to this beautful short video:
https://www.youtube.com/shorts/aY1W-hzyApU?feature=share

the creator explained in a comment: "I blended a moving gradient layer a fractal video in After Effects".
So I used a very dark fractal video - https://www.youtube.com/watch?v=1Ta4BQpGhY4  inverted its colors , and added a moving gradient layer, while chaging the opacity of the fractal layer.

I am attaching the result here: https://youtu.be/uHFr6iqlKSk

 
Can you think about a way to make it more similar to the original sample?