It's a shame the aerial footage isn't yours but it's tricky to get permission to fly in cities.
I think the main thing that struck me about the video was if you're doing a narration for your videos, you really need to make it louder.
I work in broadcasting and one of the main complaints we get from the public is that the music is too loud, and the narration too quiet in comparison.
With this video, if I turn up the volume so I can hear the voice, my head gets blown off by the music.
Take a little care with recording your narration, bring the microphone closer (it sounds like you're far away from it), it'll sound better and be louder. Then when you're editing, use the audio meters to judge whether the music is too loud. Music should not be peaking as high as your voice, it should be about 2/3 of the volume.
Audio is one of those things that is often forgotten when people start doing video as they think it's all about the visuals. But a good audio track makes the difference between something that's ok and something that's great. It's especially important when you have facts to deliver like in your video.
Keep going, your videos will continue getting better the more you do.
