What other shots of Nana did you take?!
I love the 1D X, that and pretty much any quality lens are going to produce great results.
It is wise to avoid getting any customers in the shots, which may be your biggest concern at a place like Nana, where alcohol fuelled bravado could cause problems from some of the guys there. Especially those who are playing away from home! It is not the sort of place you really want someone to get a camera out, even if it is only a point and shoot!