Why JPG? JPG will give you unwanted artifacts, JPG filesize is bigger then the others, only 2 colors are needed, etc...
Also, if you want a proper image of that cross, you could try to search for it in special tattoo catalogs. The cross is proberly a common symbol and has been done before. You can start by looking up the name of the pendant and then looking for that name in tattoo catalogs.
Anyways... here is another edit of that image...
Also, what do you want to be symbolised? What style do you want (eg celtic?) Or is it that you just liked the cross?
However, be very carefull with the latter as some symbols means something entirely else (by the general public) then you think they mean.
Eg: the depicted cross, and especially the edited 2-color image for the tattoo is very close related to the German nazi iron cross, the only difference is the slightly longer lower part of the cross.
Cross Pattee, Iron Cross or Eisenas Kreuz: Also called Mantuan or Maltese Cross. First linked to an ancient goddess temple on Malta, it was adopted as the Iron Cross in Prussia. During the First World War, it appeared on German fighter planes and tanks. Later, it became a fascist symbol in France, Portugal and other nations.