The red camera/sensor on the forehead and the back of the head are red transparent parts instead of stickers. The eye parts are a clear piece.
There is two different way to make the eye using the stickers.
1) apply the black sticker that surrounds the eye, and then apply the gold eyes sticker, or
2) apply the sticker that had the black parts and gold eyes in one sticker.
The parts beneath the eyes are yellow parts that'll also form the visible vulcan. Gold sticker are to be applied on the yellow parts before the clear piece (that have been applied the black sticker) were put on it.
The gold sticker beneath the clear piece reflects light depending on incoming light's angle.
Then finally put on the gold eye only sticker.
A is the clear piece.
B is the clear piece when applied with the black sticker. When put on the complete head, there will be a difference in length between the eyes.
C is after applying the gold eye stickers.
Attaching the dark gray parts that will be the inner detail of the exhaust on the cheek.
Attaching the cheek armor. The dark gray parts are now inside the cheek armor.
WARNING FROM GUNPLA SECRET FACTORY: the head parts are can easily be disassembled only up until this point. After putting the top helmet in place, that part will be hard to disassemble. Gunpla Secret Factory had damaged the left vulcan in the process.
The completed main body.
The shoulder can be raised that far.
The arms can pose for holding the beam rifle with both hands with ease.
The waist is on ball joint, allowing movement in all direction.
That much movement allowed for the mobile waist type (instead of using the transformable core block waist)
The head can look up pretty far, and the neck has some details