I agree with Cami...just because you have an intact, pretty, "healthy" boxers does not mean he should be bred. The only reason to breed a dog is to better the breed, not put money in your pocket.
You need to prove that he's worthy of being bred and is a good representative of the breed. You do this by having him judged in the conformation ring. Finishing him in the breed ring is only your first step. The next step is complete full health testing, here is a little bit on that here:
Boxer health testing
Like Cami stated, to do anything less than this just makes you another backyard breeder polluting the gene pool with more untested, unproved boxers which is terribly irresponsible.
My first suggestion to you is to find your local breed club, get a mentor and have your dog evaluated. Read up on the boxer standard:
American Boxer Club Breed Standard
That said, even if he's not conformationally sound doesn't make him any less of a boxer, it just means he shouldn't be bred. I have a bitch from show lines and she is gorgeous, but because of certain faults she's now spayed and now she just takes up half of my couch

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