Sand down the background (if you need to) and then paint it Titanium White. My background was dark, so it was necessary to paint a lighter color so that the background doesn't show through. It will definitely show through if the background is dark and the fabric isn't thick. Allow to dry.
Make sure your fabric is washed, dried and ironed. Prepare the fabric with Mod Podge - this means putting the fabric down on a non-stick surface and applying a medium layer of Mod Podge.
Allow to dry. You can now cut the fabric without it fraying, and it's easier to apply to a finished surface because it won't wrinkle.
Here I'm applying Mod Podge to the back piece. Apply a medium layer and then lay your fabric down - smooth, smooth and smooth!
Push all of the air bubbles out and wipe away any excess Mod Podge that comes out the sides. Allow to dry. Once the fabric has dried to the back piece, give the top another coat of Mod Podge. Allow to dry.
Paint your frame. I used the tiny brush and gave it several coats. It went on surprisingly well, and I really enjoyed the painting. Very cathartic.
I used color chips to pick the colors of paint I wanted to use for my keys to go with my frame and background.
Paint your keys with your paint colors. It's going to take several coats, but it's fun.
Don't forget to use your small brush to paint inside the little grooves and holes.
Glue the keys down with your craft glue. Allow your key wall art to dry and then give the key portrait several coats of Mod Podge Gloss sealer. It shines and then it's chip proof.