Description(Ill make it simple):
Skull of the pirate: it shows that we are all fighting enemy, hunting monster, killing bosses no matter if we DEATH or ALIVE.
Name tag(i am a pirate):sorry if can't see it. it show you that we are faithful to the RULE of pirate(our guild rule).
Gold coin: we all know that we need it.(but pirates need that more than you) :P
Sword: it will be always next to you. i mean we are nothing without weapon or weapons or stuff or whatever.