A lot of people don't like "homemade" things. A new mom wants to have everything right and perfect in the baby's room. I can understand that and don't have a problem with it. Make her something else for the baby or just go to the Pottery Barn and pick out something that matches. She may appreciate a quilt from you later on. Everyone has a right to like or dislike things same as we do. At least she let you know before you put all that work into a quilt.
Sybil