secretly the real reason that famous artists go through a blue phase is that they just get tired of trying to make all the other colors look good. Blue is just so easy to make into something beautiful even without trying.

Indigo is for Makani.
She's a fan artist who makes especially good HP fanart. Also Avatar, Lionking... and a bunch of other stuff that I'm not as interested in. All of her drawings are expressive and she has a... unique, sense of humor.
She isn't on FA, but you can find her art a makani.deviantart.com
and also HP art at acciobrain.ligermagic.com