Keep the rolling pin dusted as well. Cut the leaves with cookie cutters or by cutting around a drawn pattern. Place leaves on a nonstick surface such as wax paper to dry. Shape the leaves by laying them over a paper towel roll, covered in wax paper, or in a cupcake liner. Leaves will dry overnight and can be placed under an oven light to speed the process.
Paint veins on the leaves while still soft.
Simply wet the brush and make fine lines, using a golden-yellow paste color. Leaves can be placed flat on the cake or they can be elevated by piping a small mound of icing underneath one end of the leaf. Pumpkins can be placed into the side of the cake or on top with leaves surrounding them. Painted branches can be added as a final accent. A public library is a great resource for decorating books.