I'm a little late with this(his birthday is on 26th Sept) due to work and stuff but anyways it was fun coding this pen. This design is inspired from the poster my little brother designed and gifted me for my birthday a few years ago :) I have it framed and hanging on my wall :3
Been wanting to play around with CSS blend modes and so glad I was finally able make something out of it. Also ended up trying text gradient animations :)
https://cssgradient.io IS AWESOME and you should check it out if you haven't already.