Thanks guys, for both the praise and useful tips.
It looks a little less flat in person, but I was wondering how I could add some depth to it seeing as the highlights I did before the red vanished, so thanks for that tip Bakerofish.
For the brass I'm thinking a highlight of maybe shining gold, or perhaps buying some burnished gold for it, but it's actually the first time I've tried to make a bronze colour. Any suggestions there? It's currently a Tin Bitz base coat with thin layers of Dwarf Bronze over it, I was trying to add a little depth to it that way but I don't really notice it.