Nice work!
My only advice is to shoot and mix different motions, not only the one with the phantom going forward. You can achieve much more dynamic results using backward motion, ascending and descending, revealing foregrounds and backgrounds little by little.
Last but not least i also love the "tripod shot" where the phantom stays still, and the viewer has time to enjoy the scenery (especially if beautiful and relaxing views like this!)
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Phantoms often struggle with tilted horizons, and when there are oceans and water the issue is pretty visible... don't know cinelerra, but some post production helps with that!