i might have missed the explanation about your new sheep characters so I'm gonna ask - what's up with them, why are they sheep?
lol its no problem, the joke is that all three of them are superheroes with sheep themes despite having only tangentially sheep-related powers/weapons.
from left to right in the image:
-polly (white-haired lady) is a superhero with a cloning power who named herself after the first cloned sheep dolly
-hypnos (blue-haired guy) is a superhero who was given magical powers to put people to sleep/manipulate dreams by a spirit themed around counting sheep, named sleep sheep
-barbara is a superhero with superstrength and a one-person battering ram named battering ram
and so they're all sheeple!