Keep in mind the prompt given about being in a gymnasium without a microphone. It might help if you picture yourself in a large space and think about how the sound will travel around you. You will want to project, so using your diaphragm to produce a solid breath behind your words will help them travel to the listeners. Doing some breathing exercises will help you to support your breath when you need to project. For a script that is mainly a long list, you can try changing your tone, volume, and pacing. You can try emphasizing a few words in the list to get the audience's attention, otherwise it might sound monotonous. You did a good job with your enunciation! Keep practicing and keep up the good work!