Perhaps, if it really is more secure than AES256. And not just mathmatically, but also more secure on other vectors.
You could perhaps try to write an article about your newly designed algorithm and try to get it published in a peer reviewed cryptography journal? Although I think they would require a lot more in the article than just the mathmatical approach. I assume they'd want some proof it is protected against common attack vectors and such, but I'm not an expert at all.
Maybe your local university has a cryptography specialist whom you might contact.