Jenny: This is interesting envelope package because it's heart shape normally the envelope it's rectangle or square shape . The good thing is the heart shape also can be a rectangle shape. but when you open it . It is a heart.
This simple design can be accomplished using a paint brush and acrylic paints. Just lightly flick your brush across your nail at an outward angle. Using acrylics allows you to wash off your mistakes. If you have a steady hand, use nail polish.