I think since Nino wears blue and has an eye shape(like the "eyes" on peacock feathers) on his shirt, that he'll be the peacock
okay, if it really could just depends by their clothes, it makes sence, i guess, ahah. but, seriously, all of them really have something based on their miraculous in their clothes (at least, a colour, huh) or in their appearance.
so let me scribble something stupid (like its stopped me before)
*Edna`s screams in the backgroung*