Should this be tagged as cosplay?

変化「まぬけ巫女の偽調伏」

Transformation "Pseudo-Exorcism of the Stupid Shrine Maiden"

And no, not really, since it's a transformation, but that's the usual way to tag pictures of characters looking like another character.

Shall we call it "formplay" then?

Maybe mimic_form is more suitable...

What about "transformation" since she transformed into Reimu?

BlueFox said:
What about "transformation" since she transformed into Reimu?

That would be henshin.

But there's also a tag for transformation and it fits this almost perfectly. Henshin is more of a transformation scene or the pose.

But it seems no physical transformation is happening... but anyway... tag added.

ahem.. gentlemen

BlueFox said:
But there's also a tag for transformation and it fits this almost perfectly. Henshin is more of a transformation scene or the pose.

Hence only in case of a hero/magical girl transformation.