An interesting and promising demo.
I thought the flying controls looked good and the scenery fitted the story. Movement was smooth too and the narration was good.
Having said that, I thought there was far too much of it. For example, at the start you see 'press grip to move' but the story is still being told and written on-screen when you just want to try moving.
Maybe have a tutorial in the full version that explains the story and the controls before the game itself starts?
I did like the change in styles between the searching part, the shooting and then flying.
You might want to check the display of the narration as sometimes it did not show on screen at the same time as being spoken?