Unfortunately, I do not have images that demonstraight the LVX signs, so I will explain them. It isn't hard to figure out. Perform them in order. In this, the first is the sign of Orsiruus Slain, then is the sign of the Mourning of Isis, then the sign of Apophis and Typhon, and finally the sign of Osirus Risen.
1st - Hold your arms out as if to form a cross with your body
L - Right arm straight up, fingers straight, forming an "L"