For Frame cut out a heart shape pattern, this is about a 4"X4" size heart.
Using your pattern cut out a heart from colored paper (similar color to puzzle pieces)
Then cut the same size heart out of foam board or cardboard.
Print a portrait - photo. Cut out the picture smaller than your colored paper and foam board, also heart shaped. Lightly glue colored paper to foam board, then picture centered to the top of colored paper.
* Note if working with children cut out foam board for them.
Also Note background edges around picture of colored paper.