Here's my immortal witches from my comic, "The Magical Idiots" aka "TMI".
Yes, these witches have names and yes, these 2 are sisters.
The one on the left is Hazlin Immortal aka "The Good Witch"
and the one on the right is Illusion Immortal aka "The Evil Witch".
Hazlin the Good Witch and Illusion the Evil Witch (c) Miss TMI