When done, view your presentation without the sound and ask yourself if viewers can get a sense of your story from just watching the visuals. Vary what you show and keep the pacing brisk. When people are speaking, show appropriate images to bolster what they are saying. Use images to convey a sense of location. For example, first show a full shot of a building, then take viewers inside.
Sound quality is an important consideration.
Make sure it is crisp and at an appropriate volume. Enhance your story with music. Make sure that you have permission to use any pre-recorded sound tracks. As in local news broadcasts, tape the reporter on location explaining the story. Frame the shot so that a visual component of the story, such as a building or a device, is in the background.