Thanks everyone, some really useful tips. Tonight was a paint session, but I did so many other fixes to other bits I never made a decision about the gold.
First here's the scales. It's really quite difficult to get so much contrast with red, isn't it? The blue in the shadows helped, but do I need to do more?
and here's a view of all the other bits. The most obvious change is a repaint (again!) of the armour. I decided to do it as leather armour - the brown goes better with the green, I think. Not sure what the white dots are going to become, yet.
And a couple more views: touched up the green, the hand, the shoulder pauldrons, and a bunch of other stuff like the badge and flower.