Not sure, but it seems reasonable enough, don't you think, or it wouldn't be fair at all. But I do know that you're supposed to only submit purely your own work. =3= This is just coloured. She didn't make the line art for any of the images.
Oh, me see Well, for me it's okay, if there's no limits in rules and someone's really talented and quick to draw, I think s/he deserves more entries. But I think it's not purpose of this contest only to recolor instead of redrawing... And I can't even see recoloring, but just editing in this one :3