I too have a fetish featuring Japanese girls, but mostly in the context of the "Skin and a bit of rope" thread.
Piper, I’ll have to double check myself, but I think celebrity manips are OK. For instance, Emma Watson has been doing photoshopped fellatio since before she was 18, and nobody’s gotten into trouble over that yet.
And yes, I’ve seen such, and no, I don’t collect such things, and in addition I decline to post any examples.