Hey Harriet. What a gorgeous way to add art to your living space! These are available from Hey Harriet's Society6 shop, and come in art prints as well.
Have you heard of Society6 before? I've only stumbled on it and explored a bit recently, but am loving a lot of the art I've been finding there so far. All the cool throw pillows make me wish I had space for dozens more cushions in my apartment!