I would go with Black and White Masquerade. The '80s is so recent that some of the employees might not even think of it as retro. Also, honestly, some people probably STILL wear '80s clothing and either won't 'get it' or will get their feelings hurt (unless it is a particularly young crowd).
Of course, it loos like the party is today. Whatever you picked, I hope you had fun. Happy Holidays!