It looks great. Love the fabric
We learn by doing. Every quilt, our skill improves. And it is amazing how when someone else makes the very same mistake we have, theirs looks perfect and ours looks bad. You are being too hard on yourself.
I bet your Granddaughter will love her doll, blanket, use it and have to have it washed often. She won't care if a line of quilting is slightly not perfect.