it was nice and original
but why would Baxter explain how they came to be, to someone who already knows. i think you need to make the explination a bit more spontanious. obviously if joe was made in the same place a baxter, joe would know the whole story. plus in the flash back it sais baxter killed joe, but when joe is in te cage, baxter sais "its time to do what i should have done 20 years ago" by which i think he means kill joe, but joe is already dead. its good, but way to many plot flaws.