If you have to ask, then you're not done rewriting. Trust me, when it flows and when the words are music to your ears, you'll know.
You are so right. Style can dictate your choice of words but a good read has a certain rhythm or flow. That don't always come to me the first writing. I usually have to tweak most paragraphs to get it the way I want it. I have only written two short stories, yet to be submitted, and the second one definitely went smoother or I should say, is going smoother.
