He is formerly Nepleslian, but chooses to look largely like his older self because he was proud of himself, not his race in general. He was comfortable, albeit dying, in his own skin. As to the naming convention, looking over time and space variations or even radical shifts in naming conventions would not be unheard of. Potentially a name like Vis'thraugh could come from variations of common family names that combined over time, perhaps even to keep the viability of a dying family name in a child of a family's last female after she marries. Think of the two converging families as the Visil family, taken from my friend Christian's family, and Thraugh as a variation of my own father's last name, Straughn, given decades of traveler's influence.
Both of our families come from Anglo-Saxon and Germanic descent. Though another point of influence to be mentioned is 'Americanized' considering we are the cultural meltingpot any combination or range of naming convention would not in truth be a rarity, even if a bit unique.
I do, however, appreciate your input and value that you've given me the chance to explain my views and conventions. And Aendri, I've got the skills in listing now, perhaps a bit out of order, but they're there. If necessary I will adjust after work.