Historically, this leaderhead serves for neither. Harald Hardråde was a Christian king who died in 1066. He would have dressed like any other medieval European king.
Not like Conan the Barbarian.
I know, that what I suggested here (even if history remember him as more civilized because of its afffinity with christianity, he was probably still a rude leader):
If we look at the representation of Canute in painting, it probably look to much barbarian for Canute.
Horewer, Civ LH aren't the most historical founded representation and, even for Harald, this LH is maybe to barbaric for a king. But it's a game, and we want to have things that flash , so I think it still make a nice Viking LH.
Maybe it can be use also as a European barbarian (I use barbarian here in his first meaning(not Roman)) chief, but the background wouldn't fit and I must admit that I love this background. By the way, thank to Hexagonian for the background, it's base on a modified picture that he made.
Do you have any idea of a leader that would have look more like this ?