Can you explain to me in what way it looks worse? Different, sure.
This isn't a dig against you personally, or your understandable choice to use AI art, but more me voicing my stance on AI art in general, I guess:
Your old art had a distinct style and vibe. It had
character, it
conveyed something, and every picture was interesting to look at. AI art looks proficient and clean at first glance, but it's a case of "seen one, seen all" for me: AI art basically is an amalgamation of hundreds of pictures, and it loses everything that makes art stand out and unique. AI does not "do" good/conscious color composition, eye direction, line work, glance vectors, emphasizing certain areas for mindful reasons, and, well, anything really that makes art, well,
art: The product of a sapient mind.
I usually do not exclude any tags on this site, but I have come into the habit of excluding "ai cg" because it's like putting a bag of flour into whatever recipe you're cooking: It usually ruins the meal, and while it's still technically food, it's just not something I really want near my taste buds.
Probably controversial, but I would rather have a game
without any art than one reliant on AI; I do enjoy good writing, after all, and some of my favourite smut games were/are text-based, and have little or even no pictures (Free Cities, Lilith's Throne, CoC, to name some).
Again: I do understand your decision, and I'm not in a position to gainsay it (nor would I want to). I'm just trying to explain that AI "art" in general just doesn't do it for me.