This incredibly rough sketch done back in December 2020 is where the trunkos (still called neckbeards back then) came from. The initial concept, as you can plainly see, only involved five different species, and even then I didn't think I'd end up doing not only all five of them, but nearly triple that number in the initial batch. And then they ended up becoming one of the most successful groups of the Ultimocene just like that.
(A) Ziraphan
(B) Snoodswine
(C) Carnackle
(D) Boomerbeard
(E) Boglump