Take the cardboard insert out of the frame and set it aside. Place the frame on top of the foam sheet and trace around it with a pen or pencil. Trace the opening on the inside as well.
Using a pair of scissors, cut the frame template out of the foam.
Grab a pen and draw your design on the foam template, then cut the shapes out.
Once all the shapes are cut, arrange them on the frame. Try different configurations to see what works best. Remember to keep some negative spaces alongside the foam pieces.
Using a glue gun and working clockwise, secure each of the foam pieces to the wooden frame, one by one.
In a well ventilated area, spray the entire frame with a coat of primer. Leave to dry for 3-4 hours.
Once dry, add the first coat of spray paint. Leave to dry 3-4 hours. Rotate the frame, then add a second coat of paint. Leave for 24 hours to cure.
Finish the frame with a coat of matte varnish spray. (Optional)
Add a photo/print. Your frame is ready to be styled and put on display!