3D or 3-D normally refers to three-dimensional space. This 3D henna tattoo consist of a flower of open hearts with some shading inside and two leaves; one on the top of flower and one on the bottom of flower. Making this henna tattoo is really simple; the only thing which you need to take care is the shadow of the tattoo on the right which must be made perfectly with less henna. The dropped shadow is the heartbeat of any 3D henna tattoo, if the shadow is perfect the tattoo is perfect.