Skins are available for purchase (300 crystals and 30 Dimension Stones):
Wedding March Lilith skin was available for free from Sep. 23 to Oct. 7th 2015.
Lilith is the first wife of Adam in Judaism. She was created at the same time and from the same dirt as Adam and lived in the Garden of Eden. However, Lilith left Adam after she refused to become subservient to him and then would not return to after she had coupled with the archangel Samael.