How "unbreakable" is my code?

[051R15]

Laserlight! You're sharp as a tack, and I appreciate your input. The code is sound according to Kerckhoffs' principles, however, I will maintain obscurity not in the interest of protecting
the actual message, but the novel system used. If I gave away the principle behind the cipher, you still would be hard pressed to decrypt the message. You could, however, just use your own key and present a new system as your own (and profit through the sale of such). I hope my response doesn't discourage you from trying your hand at it's decryption though! At best you can try your hand at a fun, and challenging problem, and have a new and unique idea to wrap your head around. At worst, I have no idea what I'm talking about and my code is weak and easily broken. No sweat, either way