Yeah, these are just plain good models. The fantasy aesthetic still works well for AoS with Chaos, just pumped up.
I don't get the "Ogroid" however. Sorry, I keep yammering about naming, which is perhaps the least important aspect of Warhammer, but just look at that guy! Ogres (or Ogors or whatever) are a thing in warhammer! Hooves, horns, stooping back. This dude is a minotaur with a human face, not an ogre of any kind! I know, I know, Chaos mutates, but just... why. Why mention ogres at all. I don't get it.
The sphinx is cool though, even if it sort of feels like a mix of Tzeentch and Slaanesh rather than quintessentially Undivided.
Also, if I'm getting this right - this means that the Everchosen are now a part of the Slaves to Darkness, right?