I liked the action! I felt that the way you choreographed it was effective. I feel like the writing does suffer a bit from a "telling vs showing" style which makes it harder to immerse readers in fights? For one, varying sentences between passive and active voice would give it more depth
For example:
"She battered at Sherry's sword, hitting it again and again with incredible force. Sherry was forced down on one leg, using her forearm for support...etc."
VS
"The constant strikes of Taniwha's fiery steel forced Sherry into submission, her armor keeping her arm intact"
There's a sense of a narrator or perhaps a spectator describing the fight, which isn't a bad way to write, but I feel like if you want to crank that intensity to the extreme a more personable and descriptive style of prose might be more suited to writing a fight scene.
Overall, there's good vision there it's just about making it so that the way you tell the action makes it more pulse-pounding for readers!
Also take my critique with a grain of salt as I am technically not a writer(comic artist here lol) and everyone's writing style/preferences differ!