I don't *think* so...as far as i know (and i'm new to Nirvanas as well) they only encompass ponies who were exclusive to the area in which they were relesed, such as the Sweetie Babies (Liquorice, Candy and Lollipop) or baby Honeycomb. Since Baby Blossom was released pretty much everywhere, I don't thing she counts as a Nirvana...that being said, I'm thoroughly jelly of your MOC baby since she's my fav of. The early release babies!