I am sorry for posting this again, but I did some characters models based on the passport faces directly ripped from the game, so I don't understand why thet don't do this, at least....
This are based on the passport faces, tweaked and with new bodies, they are still faith to their original look, they should do something similar
They have more resources and some source material I can't understand why they are making things harder then they are.
Iirc Yu said Sega allowed them to use source material from the original games, I guess this also means source material from the assets they used for the renders back then.
just use it!
Now look at this...
BTW, it looks that they used different models for Shenhua in the renders, some looks different than others, all are beatifull anyway.