Decided to keep it simple and stick with autumn leaves and simple organic shapes. I like the look of depth from overlapping felt pieces on top of each other. Wish I had selected a brighter color for the "A" in "Thank". Another lesson learned is that I should have used a disappearing ink pen to mark up the felt. Because I used a regular marker, you can see outlines of the marks.
Overall, it was a simple, fun activity. Makes me want to create a banner for the other seasons as well.