You could use a Fresnel node as a mask to Lerp(linear interpolate) between those 2 sades of orange. You’ll have to play with fresnel values in order to get the looks you want. Reflective lines are tricky though, as we dont have access to light vector anymore. You could mimic that by feeding the light vector through blueprints but even then it would work for a single light source. But you can set up a silverish-metallic material like that, then increase/decrease an emissive value depending on the distance to the player.