Steps 1 & 2
Step 1: Flatten each leaf slightly under a heavy book. Copy with a color photocopier (cover leaf with white paper to minimize shadows).
Enlarge image to desired size.
Step 2: Select a canvas board smaller than the leaf copy. Dampen board surface by brushing with water and blotting off excess with a cloth or paper towel. While board is still damp, brush on a light, even coat of Mod Podge. Be sure to cover corners.