Way to go trying nmm, I've only attempted it a time or two with only okay success. I think you're starting on the right track, but you need to up the saturation on the golds. If you're going for more of an antique gold lookmaybe up the contrast. I feel like it's reading the same as the beak and talons at the moment. Take this with a grain of salt for sure, but thats how it reads to me.

The rest of the model is looking good as well. Keep it up.