I found this animation on this guy @dvdp Instagram. I think he made this generative animation by coding, and I know almost nothing about coding. But I was really amazed of how simple and neat it looks and I decided to remake it in After Effects.
After Effects Template: http://easyaftereffects.net/retro-sunset-after-effects-tutorial
Website: http://easyaftereffects.net
Instagram: @ilya.dynkin
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0:00 – Preview
0:08 – Create a stencil for main form
0:43 – Draw a line
1:36 – Y-position animation
2:32 – Line path animation
5:14 – Add and animate the “Wiggle” expression for X-position
6:20 – Duplicate the line few times and precompose everything
7:38 – Loop the animation
8:58 – Result
Music:
Smokey Eye – Cheel
Something is Going On – Godmode
Sunday Rain – Cheel
Violet Vape – Cheel