That rag quilt looks great. I've made a couple of them, and really like them. I think your fabric choices look great. Are they flannel? I made one out of flannel and another one out of homespun cloths. I put batting in the flannel one, but in hindsight I wouldn't do that again because it made it really heavy and too warm after a while of being under it. The two layers of flannel (front and back) would be plenty enough by themselves, I think.