Here's the first attempt. I also noticed that the feet are almost exact, and that the one opposite from Kats left foot is the exact same shape and posture of the foot on the right of the leak.
The head, and hand, were possibly taken from fanart used from this. Scroll a few and you'll see 'em easily.
Oh, personally, I think she's in. She's the sole reason the Vita is even considered right now. Everything else is either crap, or a remake of another game. Its also the most impressive IP on a portable system aside from TWEWY.
Except the entire leg (from portions to placement of her armor and detailing) is completely different. So.... Yeah.
Someone already constructed the entire image from parts before. it was exact.
that image of her character page is 100% fake.
the leaked image on the other hand, im not so sure.