Overall a great first result Dan
I agree with Graeme though the core and particularly that thick bit of the "wing" that cradles the trap, needs to stay bright.
The difficulty comes when you try to keep some of the cool detail inside the core and around the trap while at the same time still maintaining some good brightness in order to keep it looking real...and this is quite hard to get right.
Sounds like your approach is ok though and you probably just need to try some more variations
Mike