I think Highlander has more pics of Rio of his computer. I will see if we can post more tomorrow.
Rio is fleshtone, large bust and Rina is white skintone with the regular bust (actually she is sporting a Dollfie Dream medium bust right now). One has the slide joints and the other has the ball-joints, but right at moment...I cannot remember which one is which without looking at them (they are in the bedroom).
We will post more photos tomorrow. They are the newest Obitsu girls in the house, so I am sure they will be happy to pose for pics.
Can you tell we like the anime, "RIO - Rainbow Gate"?
That head is the largest of the Obitsu heads and takes larger eyes (18mm generally). It also takes larger wigs - standard SD and Dollfie Dream sized wigs. It has been easier for her to swap out stuff with all of the Dollfie Dream girls.