Jaitea said:

I know Bingo.....I'm not 100% happy with the way I've used that CG model, gonna re-structure how I did that shot.......the main thing I'm striving to do is not having things being obviously CG....Gonna think....

Angel's suggestions should work.

J

What is your renderer?

Did you try to combine two or 3 renders with different settings together to take a nice result in compositing?

Your deathstar looks a bit flat. You can cheat a bit by adding a slight motion of turning. more patrolling star destroyers like the one you added is a must if you want to tone up/guide the eye to what points you want to show.

This is a nice article you can look and take ideas of the basics but masterful done subconsciously language of a successful done shot.

http://www.davidbordwell.net/blog/2011/02/14/watching-you-watch-there-will-be-blood/

-Blue