Upon Google-ing ‘Masquerade Armor GW2’, you’ll see an armor skin(one of the best looking female armor skins in the game imo) which is pretty much identical to the Mesmer’s armor in the character selection screen.
However, in the PvP locker, the preview of this skin looks like some tribal type of skin… meh…. from the icons/name, you’d expect the better looking mesmer-ish armor to appear. Is this a bug? hope so!