FF's MNKs have a
heavy Indian influence mixed into the Chinese Shaolin type monk and Japanese martial art forms.
You can see this in the aesthetics and Job skills.
That's what makes a FF MNK distinct. And yea, FF has enough of a legacy on their Jobs that it should pull from its own icons not general ones.
The male version of the AF should've looked like Yang's
After years though (if not just bareback with tattoos).
Like this:
Many of the Job names are general, but FF versions have been refined to be very distinct from those general meanings.
They should stay true to that legacy while also improving upon it and adapting appropriately.
That said, the weapons could definitely be
less Indian based. They weren't even like that in previous FF's anyway (most were just barefisted anyway).