A picture can be worth a 1000 words. Maybe if you post what you have and where you want to put your next one and the colors in it, it might help to create the vision better, and the photo might give you a new idea. I bought fabric "frame" print that I can cut the size I want and frame whatever. Small pictures framed with larger ones in the same small quilt for example. A pattern called "Seattle lights" does this quite nicely. Good luck with your goal.