I'm 3 eps in but I really, really like Adora's design. The form fitting uniform to show off her muscles and curves, the cool spiky shoulderpads and horde symbol, the general red and white theme, the blonde ponytail with the hair bump, and the slightly masculine face like an action anime protag. She looks cool. And simply sticking a flower on her head made her look so pure
She-Ra is alright, not that great, but I like her alien and otherworldly presence. Growing into a small giantess is a neat detail. I'm liking it more as I see fanart that plays up the golds and whites, like a valkyrie.
Catra is good in her spiky yet soft looks, that butt, and I love how all her movements gives off a really catlike vibe. I don't know that many catgirls, but I think they nailed this one. They manage to give weight to the way she carries herself like a cat jumping on your lap.
Bow is alright, Glimmer is a potatogrape, and Shadoweaver/Hordak/that mystical techno sword lady's design are kinda cool, they'll probably grow on me. Everything else is kinda meh. The elves in Glimmer's castle look straight out of warcraft, and her mom's design... sucks honestly, along with her personality. The other horde cadets look good. And I've seen pics of Scorpia and that crazy hair girl, and they look great.