@john09 I have that shinteo model and it's different than the one Ryona is selling. I can tell because I've used his model and the headpiece has a significant visible line of the backhead/neck which is really annoying. The Ryona model doesn't have that.
It is the same model, he's just used Photoshop to (poorly) blur out the seam.
Ryona even says in the description that the head is a separate object, which is the way that Shinteo designed it. Ryona doesn't do anything original, just downloads Shinteo's files then uploads them to RenderHub to sell.
@graphicsman321 Shinteo said he has a new Liara model that has fixed the neck/separate head issue, but it's private now until someone commissions it to be public, so it's entirely possible that this is the "fixed" version or I could totally be wrong.