I am a former VFX artist for a few [adultswim] shows who’s been using AI since Thanksgiving '21 and Midjourney since the beta release as well as open source alternatives like Stable Diffusion. You can read the comic in full here: https://www.victorgnarly.com/stories/project-four-l3zw3-sl66r
This was three separate V4 midjourney prompts with the middle being a variation of one or the other. I forgot which one came first. Lastly, Leo (the head) is their own three prompts composited into each frame using Photoshop. The animated panels on my website were done in Ae.