Hi,
Ornatrix is indeed a completely separate beast, it doenst have anything to do with xGen.
One recent production where Ornatrix for Maya was used was Duel by Artella: https://vimeo.com/192507032
There is a few other big studios how are working with ornatrix for Maya but as we are under NDA I'm not sure if I can talk about that(I will check).
Maybe we can offer you a full preview so you can try Ornatrix by yourself. We have an extensive library of tutorials in youtube where you can learn everything about Ornatrix. If you are interested please send an email to Marsel through: marsel.khadiyev@ephere.com
Jeordanis Figuereo (Product Designer. EPHERE Inc.)