ODF
Though I don't define my "SELF" as a porn creator I do and have been and will always be, crating Erotica (though OT I'll let others here try and find that tiny gray line separating the two).

The images you provided indicate that using Antonia will make it a bit easier to create something more realistic . 

Regarding the first image admittedly, I have done NO images from the first Point of view in my work in part because it less "Artistic" but also because perhaps NONE of the models out there thus far can realistically convey the...well...err...the view realistically).

The second image seen from behind  is also more realistic rendition of actual anatomical placement from that angle (a definite plus for those of us in need of this kind of posing). 

So the fine tuning of the JCMs in the pelvic/groin/hip/buttock areas for Antonia is a welcome thing for, as I said, all the other models out there fall horribly short of any semblance of realism. I only hope that in fixing thses JCM's to do this do not compromise too much the labial detail discussed earlier in this thread.

Thanks!