The most important thing you have to do with the opening of your story is bring it to life.
Make it go zing.
If that doesn’t resonate with you, then maybe so far you haven’t managed to do it. When you do, you’ll know.
There’s no rules for doing it, other than perhaps The Rule of Art, which is of absolutely no help at all. The Rule of Art: Make it Happen. (I made that up.)
I have a theory that you can make any sentence seem profound by writing the name of a dead philosopher at the end of it. —Plato
[Got that one online.]
The Rule of Art: Make it Happen. —Convivius The Uncertain
Even when you follow perfectly the Rule of Art, there are those who won’t like it. This doesn’t matter. Getting good grades from readers at an online writers’ site might feel good, but in reality it’s a meaningless exercise, because those readers are (by and large) neither successful agents nor active publishers. To put it another way, they aren’t buyers. They don’t write checks.