This is a masterpiece in the art of intensely aggressive and highly erotic female fighting. For me, you're bridging a long-standing gap to the great hand-drawn catfight artists of the '70s and '80's like Stanton, Eneg, Glen and RAM. You're channeling their intent and style and enhancing it through modern technology. You're honoring them and the path they blazed in this unique genre. I believe they would be amazed and highly appreciative of your efforts and results.
I'm thinking you're about half-way through this wildcat brawl. It's the perfect time to escalate it into the "desperate and dirty" phase as you're doing. I love it! Keep it going that way. Keep them breaking up the furniture and trashing the room as well. Part of the greatness of this piece of work is how well you make use of the room and their fighting over and through the furniture to seriously elevate the intensity level of this fight. This is the best western catfight art I've ever seen.
I'm not wanting this to end (like I said, I think your half-way through), but when you get to that point, I think if you honor the spirit of Slip Gun you will need to have the black-haired lady win. Unlike Slip Gun, however, they don't need to become or revert to being friends. Leave them as enemies and maybe they can have a rematch down the road, maybe next time in an out-of-the-way barn or livery stable, and you can combine indoor and outdoor fighting.