Those five detail things in the corners (the ones that are somewhat reminiscent of the Oblivion "O" logo
) bother me a bit. It looks like they're some sort of evolution from the usual simple circle stud things that you sometimes see on the shield. I'm not sure why you've got the two upper most ones flipped opposite of all the rest. I think if you're going to do that you should also flip the bottom most one. That being said I'd think it'd look better if none of them were flipped at all.
being said, I don't actually think you need them at all. I think the thing at the very top point works, and the detail inlay inbetween all of them is ok. But I feel like my eyes are looking for some relief somewhere, and those corners I think would serve that purpose if left blank. I certainly don't think you need anything of that nature on the back side.
I also think it's weird that your detail bits are a brighter color metal than the rest of it. Right now with the dark metal with those bright details on top of it makes the details look more pasted on. I think if you brighten up the darker metal (which makes up a majority of the metal on the shield) to match your detail shade, it will help bring it together much more. (If you do brighten up the metal, you could probably stand to brighten the wood on the back more as well.)