I'm not against killing some animals (hunting/eating/plagues). But...torturing them? No, that's no good.
I think this would be a fairer scene between a torero and his "bull".
In case you don't know, there was a dinosaur named Carnotaurus (meat-eater bull) because of his head's shape. XD It isn't very well painted, but I did not use any reference for it. Here is a good Carnotaurus [link]
Speedpainting in PSCS5: about 3-4hs (at least for me that's fast).
Refs: [link] [link] [link]