About character art...
Firstly, I need to clear up a few things and explain the decision making...
It's not AI. It's just a different artist's work. Here are the sketches. This is the same artist who designed Marbella. If there was going to be AI art injected into the game, I will say.

An earlier draft (above)
I want to make it clear that we don't make art decisions on a whim; the old artist who did those models is not with us anymore. They also themselves changed their own style halfway through production, which means SOME of the old models have to go regardless; they don't fit cohesively anymore, nor can we continue to keep both styles somehow going at once, so they need to be remade.

You can see above here what I mean. The old artist stylistically transitioned from the left more to the right - both pieces were done by the same artist. There are only a few of the style on the left still in the game, so they need to be tweaked/revamped to join the other 90% of models stylistically. I would have still had the old artist tweak and revamp these sprites regardless.
Now, with all of that out of the way. I want to talk about what I'm going to do moving forward. As it is also important you guys actually like the art we're doing.
I have spoken to the artist; he wants to put forward a second attempt in a style they are more comfortable with... I have also managed to get in contact with the old artist, who will see their availability to return if need be.
Both artists are going to put forward their remake of Celeste.
You, in the next couple of days once both models are ready, will vote on what you prefer, and we will move forward with that.
The poll will be open to everyone; it's not going to be locked behind a paywall.
Please vote when the poll is out!