When Barcus made Maedhros' prosthesis, he had limited access to materials, and no power source at all. The thing he made was as elegant as he could fashion it to be, sleek metal and enamel, but it operates via toggles, with a bolt that can be tightened to secure the position of the fingers. Since then, he's increased his skill significantly, but his access to resources is what really makes the difference.

Gadriel's armor is a reference point. Beleth will not, he assumes, want a Black Carapace or ports that plug into her nerve endings, even if that was something he was capable of creating, but ceramite has astonishing potential. That, plus his new ability to create what would be called lightning stones in his world, to be used as a power source, means he's made something light, strong, and far more resistant to heat, cold, and electricity than solid metal ever could be.

He's asked her to check the fit of the cup at the end of it a few times, but not until the piece is truly finished does he send it to her in its entirety. The weight of it is carefully balanced to match the center of gravity of her other arm, and it will respond to the movements of her shoulder and stump that remains, sensitive to the motion of muscles and the pulse of nerves. Just that much leaves Barcus extremely proud of his work, but he's put forth an effort to make it beautiful, too. The overall shape is naturalistic, but rather than match her skin tone, he's etched lines of silvery-white along the forearm, in the shape of a halla's horns--the image taken from design motifs in her and Solas' home. And on the underside of the wrist, inset in ink-black enamel, are six almond-shaped ruby cabochons: a deliberate echo of the Dread Wolf's eyes.