Cambodianess.
I’m sure that the artist may have had good intentions, but this really was boneheaded in the extreme by him and by Vice in publishing the photos.
The Cambodians have actually done a pretty good job (as well as you can) in memorializing Tuol Sleng without overdoing or over-commercializing or politicizing it. Its one of the most moving places I’ve ever visited (although it was many years ago, it might have changed more recently). We should be learning lessons from them, not using them for virtue waving or self promotion, or whatever it was that motivated the artist.