Currently wearing this artifact on my character but I'm not really a big fan of how it looks. Still I don't really want to get rid of it due to its value so I was wondering whether there were any decent replacers.

Hi,

I pesonally use this one: http://mw.modhistory.com/download-33-14269

But if you would prefer a bit more... "old bone" look, I would recommend Kalamestari_69's http://download.fliggerty.com/download--839. It is made for Bloodworm helm, but if you just rename the nif or edit the esp, you can use it for Oreyn's helm as well.