I think that's just a combination of a very bright external light, a transparent head, and a semi-reflective surface beneath the transparent tissue (it looks li

I think that's just a combination of a very bright external light, a transparent head, and a semi-reflective surface beneath the transparent tissue (it looks like what I imagine a transparent beach ball with some reflective stripes and some organs inside would look like if underwater and a bright light is shone on it). I don't know how literal "glowing" is meant here. > its eyes are two glowing green orbs behind its face