Hello, if you are in the list of contributors then your changes were accepted. Note that Serbian is considered an "established locale" so in general you need at least another person to vote for your translations to have them approved. The changes I see are good.
When the "vetting phase" arrives, make sure to check if other people voted your translations. You should see a green check next to them. If your translations have an orange check, you'll need to ask for more votes in the forums (and let me know if you don't succeed). If your translations were not approved last time, you should click "import my old votes" when the submission phase arrives, so that you start where you left. No work is wasted.