[Ryu Kazama]

Right, slightly confused with the first one as I have never seen that Sephiroth before.

From what I know ArtFX normally gets associated with US releases. I think I remember some ArtFX stuff for FFVIII and FFX in the past and they tended to be local US releases (figure is same as Japan from what I remember). But in this case I just don't remember anyone but Play Arts making figures.

There were other types of figures for AC in similar boxes. I just did a quick google on them and they're probably legit. They may have been available in a different way in Japan though - I honestly just don't recall there being any other version.