I remember seeing this pic before but this time it looks updated as in high quality. Love it anyways

Actually those Rei and Asuka costumes are pretty cute, and Shinji's is not bad (at least until one learns about these kids' past...).

Very nice piece of fan art, by the way.

I think Shinji's pumpkin is carved into Sachiel's mask, while Rei's is definitely Zeruel's. I've got nothing on what Asuka's pumpkin is supposed to be.