I prefer the old character model. the dark lines, straight bangs and simpler hair added to the realism. I felt like she was actually an early 20s woman sneaking around doing exibitionistic acts.
with the new style, with the soft lines and the overdone hair, it feels like its clearly a hentai game. im sure the gameplay will be immersive enough, but I think sticking with the original character design, or trying to recapture the same energy, would add a lot to the game.