Those wounds are not really all that bad considering. Breeding Bettas is not for the weak hearted. It can get brutal and fish have been lost from the after effects of spawning. That's the risk you take when breeding these fish. They are designed however, to take this kind of abuse and survive. Their fins don't always heal to the way they were before they spawned but they do heal. After spawning was completed, I just put my females in water that had been medicated with Furazone green or Nitrofurazone to prevent any secondary infections. This worked very well.
Just make sure, when you try them again, that the female is in good shape, well conditioned, and showing her breeding stripes before you let her loose with the male. If you are unfamiliar with the breeding stripes on a betta, you can see pics of this in my albums in my bio page.
Hope this helps.