What a lovely gift. It looks as though she has a large wonderful family. I predict it will be the most saught after item in your grandmother's estate when the time comes.
I made a wallhanging for each of my brother' after both of my parents passed that included photo transfers of each of my grandparents wedding pictures and each of the four of us and our spouses on our wedding days. As the only daughter I payed a whole lot more attention to family history than my brothers.
What a wonderful time you and your Mom must have had working on it together.