What this is about is my inevitable attempt to actually carry out the experiment and see what would happen if I made a transparency map for the ears, with the slightest hint of non-white. Would it offer any sort of translucency?

Given that all these lights are pretty much behind the head, it look like it sort of works. But perhaps I have just enough angle on them that the effect is not really deriving from that.

Anyway, it's not a workable approach... giving transparency to the ears actually gives V4 a hole in the back of her head. Go figure. And of course, the only light colour that looks reasonable peeping  through is red.

Ah, well, I got some fun rendering out of it... doing a few more, but not particularly as part of the experiment, which obviously doesn't really work. :)

(Click for full size.)

______________

Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3