I am so sad and also happy to hear about your 4 year old grandson. Having 3 girls go through the school system I know what you are talking about. Sometimes they just don't get it, the teacher, and others are so gifted.
I think your quilt looks very nice especially for a first one. It is a very lovely quilt and she would be happy to have it, sometimes we are really "the quilt police" and too hard on ourselves. She won't be looking for what you are looking for and will love it.