would like some opinions on the test model I quite like it but still got some doubts.
The golds work much better than yellow, and the blue / purple combo works very well. However, I would probably color the boltgun in another color, instead of blue, to create some contrast between the weapon and the model. Right now it's hard to seperate the model from the gun, and the blue becomes a bit too much.
If I were you, I would focus on the weapon and not the model. The model is perfect in my eyes.