Your profile looks very good to me.
I don't see much room for easy improvement, but I'm not from Accounting. You didn't mention coding skills, maybe there is something to do in that regard.
If things like research fit is great, I see no reason to back off from top 20. But of course don't limit your applications to top 20, you gotta apply wider than that.
About you being from a top university in your country but probably unknown in the US, I'd like to say a few things. First, professors often know a lot more about that kind of thing that we usually expect. They travel a lot, meet a lot of people, and certainly knowing more about universities in the world is of interest for them. Second, even if they don't know, they probably can easily find ways to know more about a specific university if they want to.