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Fun fact about the Chozo Soldiers: the model for the boss in Elun (specifically the cutscene version) is the only one for whom changing the color of the eyes is an easy task.
In the cutscene, the soldier sits dormant atop a pile of rubble and corpses. The eyes are black when Samus walks in the room. Then the camera zooms in on the soldier's face and they begin to glow white.
The mesh for the boss in Elun has a component that the other soldiers don't have: a little segment over the eyes that controls the color.
The Elite Soldier from the shipyard doesn't have that.
You'd need the model from quarantine if you sought to change the color of the eyes. Aside from that, the models for the different Chozo Soldiers are mostly the same, so you could take the textures for the ChozoSoldier (black) ChozoSoldierNormal (red) and EliteChozoSoldier (gold) and apply them interchangeably to whichever model you've exported from the files.
While we're on the subject, I might as well show you some concept art!
Concept art from pages 124 and 125 of the Metroid Mission Logs.
Page 77 of the Metroid Mission Logs.
Page 78 of the Metroid Mission Logs.