One of the portraits for the Celestial family tree in a story I’m working on. Bonnie Zacherle also known as Bonniecorn, Iris, or Iridia, is the original creator of My Little Pony. She’s one of the two head goddesses in my story as well as the grandmother to the Celestial siblings.  
Bonnie’s OC was designed by https://willisninety-six.deviantart.com/
 
I don’t really have much of a head cannon for her seeing as she only makes a small passing reference, but I see her as the mother goddess for all life in Equestria… I’m thinking she made them from stardust or her own feathers or something then gave them life with her magic painting the first generations with the colors that would later become known as the rainbow. In fact the rainbow is a big part of her mythology, it’s part of why the Elements of Harmony create a rainbow of friendship blasting power, as well as why the bridge between the realms is a rainbow. … okay apparently I did have a head cannon… Shrug
 
Ponies belong to Hasbro!  
OC Design as stated belongs to https://willisninety-six.deviantart.com/