I'm not sure Alex is the one filming the videos with this particular actress. I think she works with someone else (maybe her husband or boyfriend?) because all of the sets that's she's in are never used by any of Alex's other models. That tells me that this location is unique to her (and her teammate). I've only seen her with the same male in a wrestling mask, and Alex doesn't bother to wear a mask. Masked Man also appears to be younger. That tells me that Alex isn't the maniac in those films. I'm guessing they shoot the videos, then let Alex sell through his storefront for a split of the money. This allows him to have fresh material to fill deadlines when he's busy filming and editing his own work. I'm guessing Alex built the cross for them, because he has one mounted on the wall of his usual studio, too, and it looks very, very similar to that one in design and construction.
What I am hoping is that Alex learns through their work and it carries over into his own productions. This is the first time I've seen a Cruel World crux video that came close to what Makar was doing in terms of posing with arms outstretched and knees bent with feet tied to the post. Part of the problem is the reluctance for models to do that pose without foot support. Apparently the idea of the rope acting as a stirrup is beyond their comprehension, but then I'm not the one standing in the thing for hours while a ham-fisted cameraman sets up his equipment. However, now that it's been done, maybe they'll see that it's possible and want to give it a try themselves.
Attached are a couple of pics from her non-crux films.