For what it's worth, the first film has a naga-type demon with a couple of TF scenes. Mostly quick and sloppy CGI.
Not really a fan of nagas, but the girl who plays this is hot.
There's a torrent available but it's CAM quality and almost unwatchable.
Update: there are some vore scenes too. Again, not up my alley but I know some people are into that sort of thing, so I guess they could take a look.