In that "cheesecakey" way that's....smile-worthy ^_^. But, while the visuals are really cool, in that minimalist, sort of way. You can't overlook the lack of audio(which WAS stated in the comments, granted. But you STILL can't dismiss it) that gives this that "incomplete" feel to it that takes things down a notch. If this IS just a testing of ability, then I'd really look forward to a full on feature in the future.
The fight itself looks like it would be well coordinated, hopefully along the veins of Pokemon Hunter by NCH (GREAT example of ACTION synergizing with audio/music), Ragnarok: Vesper Battle by ShadowWhoWalks (for "combat flow"), Neji Vs. Rock Lee by SteelSly or Hyuuga Neji VS. Rock Lee by DuDuL (innovative "ending" concept that keeps in mind both opposition), Meow Meow... 1? by NCH (slightly comedic element), GUN & SWORD by xarugas03 (fighting from a mental, strategic-tactical point of view), SonicVShadow Epic Battle by MajinThrenok(fighting from a physical brute strength power on power, force of will escalating raising the stakes p.o.v), and Super Mario bros Z ep.8 by Alvin-Earthworm(scene 3 is an especially good example of elements from each of the aforementioned)
In these regards, this flash has the potential to be among this (by no means complete) list. You get a sense of the charas.. The girl in the "skirt" and wild, primal/overtly sexy looks seems like she's that hard core, determined, fight with spirit type. The girl in the "high-tech" jumpsuit (which alludes to technology, science, efficiency, etc.), by contrast, looks like the type to use her brains to go for her opponents weakness(es), use leverage, skill, even carefully worded taunts to unhinge opponents psychologically, etc. I get these impressions from both their looks and how they fight.... kinda a Eichigo/Byakuya from Bleach thing.).
Very good flash that, while not 100%, definitely, DEFINITELY wet's my appetite for more.
A good flash (that I hope is the preview of a GREAT flash)!