Darth Solo said:
You ever have a prostetic limb attached that exactly matches your own skin tone at that moment in time? And Hammil dont have a 'real' hand from that point onwards anywayz.

Dead argument.

Although if you want more modern Terminator 3 SPFX then please continue.

Funny you should mention that, because I was thinking about how the hand would be a lot more convincing if it were a bit "meatier."

I like the idea that there is organic tissue covering the bionic hand, and it makes it a bit more convincing within context to the story, since it provides a believable concept for how the arm can integrate with Luke's body. Perhaps regenerative medicine can't re-create lost bone, but since the Clone Wars the technology is now good enough that they can re-grow tissue to go over bionic limbs. Obviously, the present-day George Lucas would probably shy away from showing a drop of blood, but since that's a non-issue I'd love to see Adywan add in some pseudo-terminator blood like I demonstrated.