It would be impossible to give specific feedback because editor applications are not archived. However, if you were to start a new thread, listing the category you applied and the URLs and descriptions you suggested, we may be able to help you write a better one.
Of course, the meta editors make the final decision - I can't guarantee that an application that we've helped you perfect will be successful. But we're always on the lookout for new editors so it can't hurt to give it a second try, and it might help others in a similar position
.
You may also like to read the various other resources available to you through this forum, including, most importantly, the editing guidelines, which have plenty of hints for selecting sites and writing descriptions and titles.