Check that you have done each of these things:

your setting gives the reader a sense of the time, place, and mood of your story

your characters are well described, interesting, and believable

your story is told from a consistent point of view

your plot develops logically from beginning to end

your story has a deeper meaning (theme) that is obvious to the reader

your writing includes a strong opening, interesting topic sentences, and a strong conclusion

you have provided enough details to make your writing effective, but not so many that the reader gets bogged down and forgets your main idea

you tighten your sentences by removing unnecessary or repetitive words and information

you replace unclear or overused words with more specific and appropriate words

you have added a title to your story