Regarding post #917557: there is a "peeled layer effect" here that is also used in a number of other images, although in the latter it more specifically shows torn paper.
Problem is, for the life of me I can't remember what that tag is. Please help jog my addled brain and fading memory...
Example post #809987 is Vocaloid Rin and she isn't being presented as a magic girl also the sparkles are not digitized, or at least not what you'd equate 'digital representation' to be. Another non magical example post #299649 is Sora from Kaledio Star.
I would think that revealing_cutout does apply to post #917557 and not post #901738, but it's just a coincidence that 917557 happens to fit revealing_cutout AND digital_dissolve AND transformation. But that particular example and its background are new to me, so I'm open to further discussion...