Your quilt is beautiful!
I absolutely love rag quilts. I made one about that size with flannel (cowboy boots/blue) that my sister-in-law wanted at one time. I made it to take to the hospital with me when I had major surgery - I didn't want to get cold and I wanted something from home. I absolutely love that quilt - two layers of flannel and one layer of Warm & Natural so it is a heavy one, but very warm.
I have made many using denim, some with flannel on them too. I love using scraps to make them and I have used just about every decorative stitch on my machine to secure the two layers - also leftover bobbins - who cares! My husband keeps one in his truck and it has been used for just about everything!
Try making one with just one layer of flannel - they make wonderful summer blankets - you know the time when you have the windows open at night and a breeze is coming in and you want just a little something to cover yourself with - this is perfect!
The dogs love them too.