Now, I'm not suggesting that you use this design, but I wanted to point out how the gold pattern doesn't "overtake" the whole mask. The white base of the mask still takes up about 75-80% of the surface.
Jedi Temple Guard
There's lots of nice Jedi design swirls in the Tython Jedi temple
, both inside and out.
Here, again, the gold and black onyx are details and highlights, not the main part of the helmet. The fin is nice, because it has a small scene depicted.
Iron Helmet Stock Photos
Maybe you could use the Great Hyperspace Bas-Relief
for something similar on the fin?