Very good for a rock paper scissors game. I like it, but it'd be better if the fights were ordered so that she'd have more health in the next fight than the last. In this case the order would be:
Dragonyx - 2200
Kunoichi - 2300
Master of Flame and Mistress - 3000
Bikinyx - 3300
Bunnyx and Fallen Angel - 3500
Also there should be full nudity for beating Fallen Angel. You beat 6 previous matches that all had the same level of partial nudity, and then you unlock a secret one that seems to have hit or critical hax compared to the others, but you don't get anything that special for it.