In desperation Zora manages to catch Vida's arm that is holding the bottle at the wrist. They struggle briefly before Zora rolls Vida off of her and off of the table while still grasping Vida's Vida's wrist. They land on the ground hard with Zora now on top. Vida has managed to hold onto the bottle but it has broken in half when they crashed to the ground, leaving Vida holding the deadly jagged remains. She attempts to slash Zora's throat, but Zora is still holding onto the arm with the now deadly weapon at the wrist. Zora has taken control of this fight to the death now. While stradling Vida's waist she has grasped Vida's other arm at the wrist and now has control of both of her rivals arms and forces them above her head. Leaning down with her teeth bared Zora bites into the left side of Vida's neck. Shaking her head like an animal she rips a piece of Vida's throat out. Blood gushes from the fatal wound. Vida struggles briefly before, with Zora still hold onto her wrist, her life blood drains away. Vida tilts her head to the right and with her eyes wide open in shock she dies. Zora feels the once strong struggling body beneath her go limp. Zora releases Vida's wrist. She leans back and raises her arms in victory. She screams: "I have beaten her!.. He's mine!.. I have killed this Bitch!"
A voice from the crowd of Gypsy"s responds "It is Zora!.. Zora has won!.. She has killed Vida!" Bond and Karim Bey sit silently but are not shocked by this carnage. No they both understand this vicous death struggle very well. It's kill or be killed. Although he'd prefer women not to participate this way, Bond is seasoned double O agent and has survived his own fights to the death more than once.
Or you could have one of them surrender and be banished. I have always had a preference for a Zora victory, but of course this is your work.
I think you should add the neck bite scene into your work somehow. That way you'd be paying homage both the movie and the book. In the book Vida is about to bite into Zora's neck when the shots ring out. The feralness of this scene has always intrigued me, with one fighter about to rip her rivals throat out. It is a "Catfight" to the death or submission after all.