Coat of Arms

I had recently reconnected with an old friend from Norway (thank you, Face Book) who would love to have her family coat of arms made into a pendant. But not your typical pendant, something that has almost a Roman coin style (an image stamped onto a somewhat round shaped disk.) I am thinking that the image can be the deepest (clearest) in the area of the crest and then become softer as it moves towards the edges.

This is the original coat of arms looks like..


And this is what I am thinking...


I'll keep you posted if it's a go!