Okay so the Steamy Style here is just blatantly AI-Generated.
The belt in this part of the character sheet literally blends into the pocket.
Gwen has a choker in just one singular image in the reference when zero other image features her with a choker. The AI clearly just mis-understood what the bra-straps were and made a choker.
Then we have inconsistency in the jacket as well. This isn't an artstyle quirk, this is a character with a well-established design that it's creator should easily be able to get correct on his own. An AI, however, will never get it right.
And all this is ignoring smaller details like the weird residue on the middle of the belt or the coloring itself resembling how many AI pieces usually shade and color their pieces. The coloring is definitely less evidence but there is blatant AI-Use going on here. Not being transparent about this reflects extremely poorly on the creator of the project. It shows he'd willingly lie to the fans of his project.
If he comes clean about his AI-use however and vows to do better, though, I'll be happy.