I would design my tree whatever way my mind went
Yes, that argument I hear often. It's an art, so I'm free to do what I like. Sure, you are. You can do what you want and create a nice tree that pleases you.
However, please do not call it a bonsai, because that's not what it is and it's not what you're doing. Sure, you can break all bonsai rules - if you know them and understand why you break them. You're not breaking bonsai rules, you're making up your own.