Adam, Janet, Stefan, and Daniel- thank you so much for your suggestions, opinions, compliments, and encouragement. This is what I love about Etsians!
I am going to take everyone's recommendations to heart and begin working on the process. I just purchased a banner that is being designed for me.
I guess the reason I don't use natural light is because I don't have any. My house is tiny, in the woods, and lacks natural sunlight inside and out. "Too many trees". I have thought of traveling to somewhere else to picture, but transporting a bunch of fragile pottery is not an easy (or light, or quick) task. I do however have some back drops in different colors and I believe I will try that and experiment with what glazes looks best with each background color. Or maybe I could add other soft and non distracting items in the background so it's not just white.
Again, thanks so much everyone!