Congratulations! You've put together a homebrew cipher, and you think it looks good. What do you do now?
Well, here's the bad news: you will find it extremely challenging to get anyone in the cryptographical community to take your new cipher seriously; homebrew ciphers are a dime-a-dozen, and for an expert, doing a thorough analysis often takes a lot of time, and will be unlikely to show anything positive (almost all the time, there's either a weakness, or the system is so complex that it's too expensive to use) - hence, experts generally find something more productive to do with their time.
You have a couple of options:
Give up; really, what you have is almost certainly not as wonderful as you think it is; you might be better off not wasting your time.
Give people a reason to suspect you might have something. First off; no one respects a cipher that was designed by someone who doesn't know how to do cryptanalysis, and so you'll need to learn it (and prove it by doing public cryptanalysis of other ciphers out there - there are plenty). When you learn that, perhaps you can go ahead and show why the various known cryptanalytic methods won't work. Even then, it'd still be difficult to get people to listen; you might have a shot (and most likely, you'd see the flaws in your current design).
