As you wish sir:
-The movement, the Galactica (is it?) moves too "hard", it's movement feels very... "angular" while it should be smoother and slower, like the show.
-The textures, they need work (I can pretty much imagine your pain here, trying to texture what little I have myself is practically my modeling Ragnarok
), they lack detail and have no "depth" to them, they make the ships feel flat.
-Lighting! it just doesn't feel as if the light comes from the star in the scene (at least to me.)
-Scale, either the Vipers look too large or the Gala looks way too small to hold that many ships (this one is easy to fix.)
-No turrets, the Gal lacks weapon models, so it feels the bullets are all Star Wars hull magic cannons.
-Camera needs work, mostly towards the end, it just feels too
I hope this does not discourage you. You have yet to tap into the true potential in CGI and your skills have yet to develop, keep at it!