Our unique family tree art gallery contains illustrations of my family trees plus ideas for backgrounds and borders. I have searched through Wikimedia Commons for beautiful high resolution images. These fit the circular geometry and theme of Family Tree Top trees. You can find the galleries here:
Nature, Illustration, Patterns
What I have found include images from nature and patterns from textiles and graphics. To show your heritage, choose something from Ireland, Germany or one of the Scandanavian or Hispanic countries. I have also found or used my own close up photographs of ferns, leichen, fractals, and flowers. I love some of the charming illustrations from yesteryear like Peter Rabbit peeking out from behind a tree (for your border).
After you’ve seen the gallery, you may want to visit my Pinterest where I have added more to the collection of ideas. The graphics you choose will need to be public domain or something we create together for private use copyright purposes.