Dusk Butterfly art and concept sheet by: @hakuku.bsky.social

The Pupals' original design (in the first and fourth images) are by @Sakuraba_Mu on Twitter
And the follow up cute chibi form stickers and guide to Pupalsonas are made by @FalseBeta on Twitter along with the layout and additional doodles on the chalkboard.

Pupals have three life stages:
The larval form, which is a combination of caterpillar and puppy,
The pupa stage where they form a chrysalis and mostly want to sleep while their bodies develop,
Finally, the full-grown form, which is a combination of butterfly and dog.