Prep your plastic film. You can use overhead projector film, which is pretty sturdy as well, or if you're like me and have lots of school or office supplies on hand you can slice the fused edges off a sheet protector, leaving 2 pieces of plastic film.

Place your plastic on a flat working surface, preferably one that can be left undisturbed for 8 to 12 hours.
Dust the plastic film with the paper towel, removing any lint or dust.

Peel individual leaves from the original plastic. Place onto plastic film, leaving enough space between leaves to comfortably work, but fitting as many on one sheet as you can.

Arrange all your foliage pant colors close at hand.

Lay down a second thick line of paint inside the first. Don't worry if there are a few small gaps between the lines, these areas can be corrected in the final step.

Continue placing thick lines of paint until satisfied with the amount of colors. Finally, fill in the center gap.

Using a toothpick and elongated scalloped motions, comb through the paint colors toward the center. If the toothpick becomes too loaded with paint, or between leaves, wipe clean on paper towel.

Allow paint to dry for 8 to 12 hours undisturbed. If you need to move your clings, move them by sliding them onto and from a hard surface.

Once the paint is completely dry, peel the cling from the plastic and apply to a clean section of glass. Admire your artwork and your improved view!