Some interesting tips from Susan Lakin at Medium:

3. Add background noise

Consider what sounds are important in this scene. They could be ordinary sounds that give ambiance for the setting, but also think of some sound or two that you can insert into the scene that will stand out and deepen the meaning for your character.

Church bells ringing could remind a character of her wedding day as she heads to the courthouse to file divorce papers. Birds chirping happily in a tree next to a grieving character can sound like mocking and deepen the grief.

4. Color your scenes

Colors can be used for powerful effect. Different colors have strong psychological meaning, and filmmakers often use color very deliberately. Red implies power; pink, weakness. You can “tinge” your scenes with color and increase the visual power. Color can also add symbolism to an object or be a motif.

Want to learn more? A great book to read is Patti Bellantoni’s If It’s Purple, Someone’s Gonna Die.