I think it's better to use wooden shield boss (there is basically no finds of metal boss from Ireland). Advanced and elite skins could have tunics; i dont think leather strap is accurate.  

We need videos of this featuring muskoxen. 

Ah! My bad! Thanks a lot!

I suppose a new coin would be bright silver and rounder (no damage). If its in color i think you could a white monogram and white shield (shield has a wooden spina with iron boss ). Background can be a sort of medium blue (as seen in depictions of Galatians with blue cloaks).    

Change the first letter from lowercase "l" (as in "legionary") to uppercase "I" (as in "Infantry") and you will find him.