You put all your aunts favorite colors in this quilt and it turned out lovely. I just love your fabric choices, especially the dot fabrics. It is a Happy Quilt. I think the house fabric makes it look more grown up.
I would let your Aunt decide if this quilt is her style or not. Let her know your concerns. Tell her you participate in project Linus so the quilt will find a good home.
As for me, as I get older (56 and counting), I love having cheerful, bright colors around me to brighten my day!