Kafe Fassett is one of the world's greatest artists with fabric and colour. Why not find details of his work on the internet and show your husband what he can do.
Kafe's work may not be to his taste, but he can learn from books and magazines on quilting what his likes and dislikes are...... and that mistakes are good. Only God is perfect.
The Navaho Indians always leave a knot in one of their weavings to ensure that they do not anger the Gods and the Shetland Island knitters always deliberately make a mistake in their fairisle knitting....... so it is good to not to be perfect!