Bingowings said:

I would be guarded about the bleached out engine details on the Star Destroyer.

In the original footage the engine details were obscured by engines in motion but the way the model has been presented here the engines look like more white discs which reduces some of the impact.

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.