User blog comment:Kaido King of the Beasts/This Isn't Even My Final Form!-When Powerups Go Wrong/@comment-18753817-20151107204700/@comment-5398287-20151108022918

His second form is meant to reflect the original archetypal appearance of an angel - body parts of multiple creatures, not even vaguely humanoid - in contrast to the modern portrayal of angels as humans with wings, which is what the other Sternritter have going for them in Vollstandig. It's reflecting that as a personal guard of Yhwach himself, Lille is both older and more powerful than your average Sternritter.