Uhm, there’s no stars and the planet doesn’t kinda look good. Have you seen a good looking planet? This ain’t it, see the reality, only then you can truly improve. No video quality improvement will fix empty/boring composition, bad lighting, lack of camera angles, clear idea and direction and lack of details.
This is a good looking planet:
Also look at these animations:
Now look at yours and you’ll clearly see what’s missing 
all the shines around the planet, the more dramatic lighting really showcasing the reljef and all the bumps of the planet. Then look at the background stars, the colorul space gradients, the "dirty camera lens"effects, the different camera angles, the tiny planets besides the big ones, really giving viewer some sense of scale on how massive is the main big planet…
Implement atleast some of these things and you’ll have a better chance of getting approved, if there already isn’t much better logo animations with the same exact idea (I bet there is…)