In “The End of Evangelion”, the third Rei acted as the main catalyst behind Third Impact, which was initiated after she fused with Lilith. During Third Impact, a shining figure of Rei was shown for a few frames looking down at Katsuragi Misato and Akagi Ritsuko moments before they died. These spectral images also appeared over the corpses of the slain Nerv personnel.
Awesome cosplay! And according to Gene, this was taken during Japan’s Comiket 81. Thanks again for sending this in!