OK I am not using everyday standard. I am talking about a commercial product that's primarily visual. JAV is utterly utterly superficial and sexual, like fashion model or especially lingerie model, there's absolutely no logic to recruit someone who's only "normal-looking" or "average". Like there's no sense to send someone who's only pretty athletic to the Olympic Games. If I buy a ticket to a Olympic Game event and see someone who can barely outrun me in a footrace, I'm gonna have a raging fit!
The medium itself dictate a particular standard. Even for, say, show biz in general the standard might be less extreme (I understand my above post may seem extreme to you). Say if either women had a great singing voice or can act even only mediocre standard. Then fine... I think they are un-ugly enough to survive in the show biz. And likely they are both fine human beings and much-loved wife or girlfriend of some lucky guy. But for JAV, no. I would neither pay for a legit DVD nor even make the few mouse clicks to download and watch them naked or doing sex.
NEO-008... yeah, using RL standard, they are moderately attractive. For JAV, at best B-class. The older sis can conceivably have a non-pathetic career.
DVDPS-467... using RL standard... for a one-time experience, I'd accept either of them as a last resort... sure either of them are preferable to masturbation. For a relationship, perhaps one can hope she has a "great personality"? For JAV, either hardcore fetish (gokkun etc) or bust.
But seriously... the mother in BNYD-03... Ok perhaps she's Mother Theresa in RL, but on the purely sexual level... no... She's way below passing grade.