Create a tape stencil for the parts of the shoes where you'll be adding the pattern. Using stencil, cut shapes in the paper for the tops and backs of the shoes. The tops of the shoes are slightly different, but instead of making another tape stencil for the second shoe, just flip the first one over and use as your guide.
Apply heavy coating of Mod Podge photo transfer on the top of paper (where the ink is) and then apply it to the shoes. Use fingers to flatten it and get out any air bubbles. Allow to dry for 24 hours.
Take a wet sponge (not sopping wet but still saturated) and apply it to the paper. Let sit for 2 minutes.
Peel off the outside paper. Do this gently with a wrung-out sponge, being careful to not pull off all the color. Let shoes dry and seal with a coat of glossy Mod Podge.
If you want to start with an easy first photo transfer project to get the hang of the process, try a tote bag. It's the perfect starter project!