Her photos most definitely real, I instantly recognise the location in the background of her photos as the pool/gym area from an apartment building I previously lived in for a couple years (on Federal street nearby sky tower). Typically a good sign to tell whether or not the photos are real is if you can tell it’s a location in the background that’s actually in Auckland (or whichever city/area she claims to be working from).
Of course photos can still be slightly photoshopped but tbh her photos have none of the obvious signs of photoshop imho (for instance no blurry or uneven lines around body area, her head looks proportionate to her body and not shrunken down to smaller size like a lot of Asian workers tend to do with BeautyCam or another one of the common Asian photo editing apps, also her reflection is visible and appears completely unedited).
Possibility of B&S still exists of course but honestly with what her description claims I doubt she’d bother with that tactic as it would be counterproductive.
Imho the odds are fairly good that she’s genuine, I’d say 90% if not 95% chance you’re safe in that regard. Honestly I’d say your main concern should actually be the quality of her service potentially rather than the credibility of her advertising/photos. That’s just my two cents though.