First of all, congratulations on the adoption! I think it is so wonderful for you to give those children a loving home. I’m sorry that your mother hasn’t been as welcoming as would be desired. I’ve recently experienced something along similar lines with Phlox and Studmuffin. So I will share that story with you, hopefully to show that even if the child is not adopted, there can be that awkwardness. Then I’ll share my two cents (or probably half a cent worth in quality) advice for how to help ease your mother into a positive relationship with the children.
Darling? Do you ever think of Amethyst from time to time? She is technically your sister isn't she?