I would find a stencil with a leaf pattern. I wouldn't try and quilt around the printed leaves, just do a leaf pattern in the border to compliment the print. I also like the lattice idea. You can use a walking foot for the lattice, but you need a darning foot to FMQ. If you get a stencil, you can hand quilt. Beautiful fabrics, would like to see the whole quilt when you are done!