Those are the only changes I would make in the way you wrote this story. You could change the gold sentence, perhaps "Gold came in, but never escaped her white-lace fingers," or "The gold coming in never escaped her white-lace fingers," but it works ok the way it is with the language of the story. I like the white-lace fingers, for some reason.
You don't want a semi-colon in the last sentence -- your comma is just right. That sentence, just the way it is, makes the story.
I have to say that I didn't get the Jack Daniels reference, possibly because the Miss Moonshine part wasn't there with it, although I'm not sure that would have helped. I think that's a story line that wasn't necessary in the end, though it might have been where you started. I did, just now, realize that's why her name was "Ethyl".
There were no grammatical mistakes, in the sense of things being wrong; there were things that could have been said differently, but that's universal, and the way you said them here captured the voice beautifully. I loved it!
