Firstly print the design on one of the thick paper, cut the edges of the card following the line on the end of the card and cut the vertical lines on the bottom of the heart.

Secondly, leave the very top part of the heart and cut the rest of the heart from top to the end of the sides.

Then slowly start to fold the card in half using the fold line going sideways on the middle. Push the heart forward and fold all the places the heart is supposed to be folded at.

Now fold the card completely and stick the top part of the other tick paper to the top part of the card.

Finally, stick the bottom of the two thick papers together and trim the paper sticking out of the card.