She will love them both. This way she can use the one you made (it's really cute, btw) and save the one her mom made as a memento, maybe even for her child. What a loving gesture.
Your generosity and compassion will always be symbolized for her by your quilt and her mom's is the loving hug she needs right now. What a wonderful multiple gift you are giving!!!!
Yours is very beautiful and in such cheerful colors. I am sure the daughter will love that her Mother had made the other and will treasure both of them.