I am not sure if it's official or not, but to me, the texture of the set, especially the red one, reminds me and resembles the armor of Vlad the Impaler's from Bram Stroker's Dracula movie. Though it's not 1:1 armor, it has those interesting unique vertical bulged lines that is only for this and the red version as far as I have seen, and interesting fact is that these sets come with a mask, the mask is unnecessary unless someone tried to make a set of Bram Stroker's Vlad the Impaler's look-alike armor set, except they could've made a vampire-like mask like they did with the fox/wolf mask and bird mask for the Life or Death quest with Triss at the ball party.
It's very fitting as well to find it in a quest line where you are visiting vampire castle, same goes with the red one, which you can get only in the Elder's place, so it all just pretty much points at being an inspiration of Bram Stroker's Dracula, Vlad the Impaler's red armor set that resembles muscles of human anatamoy to an extent, while these two sets might not, they still count as being inspired.