It's difficult to help you without having more informations on your project.
But here are some ideas that can help:
1- Try creating some real ambiances with real sounds…and try making some sequences without music, just with recorded ambiances. This will give more impact for the sequences with music.
2- If you plan to use 2 different music (may be short for 10 minutes), choose one track for the theme, (this music is supposed to produce the biggest impact). For the second music, for me it's better to choose a discret music whith minimal melodic and rythmic content (the smallest emotional impact), this way you can use this track many times without driving any viewer insane 😉 and when you'll decide to put the first track, the impact will be greater.