It looks like you assemble the top patterns in Light green x 6 Med Green x5 Dk Green x4 assemble them right sides together and turn right way out and stitch veins on the leaves. These completed units may then be placed onto/into the other pattern piece somehow. The markings/letters and numbers on the bottom pattern piece are corresponding with the colours and number of the the prepared leaves ie: L6 M4 L4 etc and D2 is at the top. There is a bow in the middle too I see. It must be a table centre or something. Just my humble opinion. Just a guess really. Let us know if you find out more.