@TheMOCingbird @SonicBionicleMaster @PakariNation99
Thank you guys!
@Sober I agree about the colour scheme; the white has lots of potential and mixes well with the metallics because it's so neutral and versatile 
@Sabretooth
I'm not sure what it is about Metru Builds, but I like them a lot as well. They really fit a MOC into canon, as you said.
@Mr.Monopoly
@SonicBionicleMaster
I do my best to take the picture with as much authentic Eye-colouration as I can, but I also add some whites to the eyes with PS6 to make the Toa feel more alive. The problem with the brain stocks is that the upper half is usually darker, and even with backlighting I struggle to get the "alive" factor I'm looking for.
Here's a comparison shot, for reference:
The PS6 eyes only take around 5-7 minutes to finish, actually, and I think it adds a great deal!