Repeating my comment:
As much as I like this work, the artist's Twitter does have an abundance of A.I. generated content. But they've also shown that they can at least illustrate in this style and make simple animations.
Though the animation in this post is a bit more advanced than that, and seems to be at least AI-assisted if not fully generated. They have another animation that clearly uses AI in the process.
It's likely they did draw the base illustration but then used AI to animate it. I'm not sure where that falls within the rules.