User blog comment:Aizen.sama/Are Espadas, Vasto Lorde(s)?/@comment-452405-20100420110537

Yeah except the wings, the tail, the Vasto Lorde shadow's horns. I don't think that shadow is the uniform look for all Vasto Lorde. More people have said it looks like Ichigo's new Hollow form but even that doesn't mean much seeing as Ichigo's hollow is just a single soul.